DexCool

I have an 2003 Montana and the head gasket is leaking and I am @#$$%^ now I have to spend 1000 dollars or more to get this fixed I want to be reimbursed, stupid GM idiot engineers you suck! And DEX-cool BLOWS the big one.

I purchased my 1999 Buick Century new in 1999. I had this car serviced by Valvoline, the oil and everything was maintained by Valvoline for years. I took it in and told them my heater was only heating when I would turn a corner. After changing oil and all it still was not heating right. my boyfriend took the cap off the radiator and it was full of rusty looking sludge and foam. I called valvoline and told them I had just had my car in and I had found this gunk in my radiator and I told them since I advised them about the heating priblem they would have had to open the radiatro cap and if they did they would have seen that gunk. I was told they could flush it for me for $89.95. I called around and got a price for a flush from Zip Lube and after taking it in to have it done he told me, he has seen this a lot with GM products and he changed it after flushing. He said it might need flushed again because the gunk will keep coming to the top. my my low coolant light started coming on, and I took it in for them to check again, and it wasn't hot, he said that the sencor must be gunked up. The low coolent light stays on all the time now, and it does not overheat because I keep an eye on it. Now the heater has gone out, in the middle of winter and I will be taking it in to have it fixed. I can hear what sounds like water gurgling behind the dash which I had never heard before. From what I have been hearing, this DEX-COOL antifreeze that GM put in my car is the problem, Valvolone kept adding the same stuff all the time I had taken the car in to them and I was told that it was required. I feel that gM has done Me a disservice by putting something into my car and requiring it which they have known for years not that it was ruining cars. This should have been a recall factor many years ago before it came to this point. I am on a fixed income and don't have the money to keep flushing my radiator every year and replacing what this crap has ruined.

I have the same problem with my 1997 Monte Carlo as many others do. My vehicle is being worked on as I am writing this. Last week I had the water pump replaced. Today, it's the gasket. I've been reading about the Dex-Cool problem and all the repairs related to it on different websites. Each complaint seems to be describing my car, exactly. The air conditioner never worked right since we bought this car two years ago. When I had the water pump repaired last week, the guy showed me all the sludge in the radiator and said I needed to get the radiator flushed. Did that. Now it's being repaired because of the gasket. $1,000 later. If GM knows about this, then why didn't they stop this Dex-Cool Antifreeze a long time ago? My car has 187,000 miles on it. The mechanic checked out the entire car to see if it was worth getting the gasket done. He said everything is in excellent shape except for this. Do I have a choice? I can't get a used car that is in this good of shape for $1,000. But, having seven children, I can't afford this type of repair. This has pushed me even further into a financial hardship. Thanks GM!

I am trying to resolve the same problem many have obviously had with using dexacool in their radiators. I have a 1999 chev. Blazer and when I open the radiator cap the coolant looks like someone threw mud in it. The radiator shop said they have experienced many dissatisfied, unhappy GM customers with the same problem. I called the Chevrolet customer assistance number 1-800-222-1020 and was told they never heard of such a complaint! After reading everone elses complaints, I can hardly believe that. The dealership told me the same thing- that it was news to them!

My 1999 Buick Pk. Avenue suddenly stopped running, I had it towed to a garage where it was diagnoiced with a engine that had siezed up. The mechanic determined that the cause of this was the intake manifold which leaked and mixed the anti-freeze with the oil. I will have to have the motor replaced as well as the radiator.

My Saturn uses Dexcool, and this is the second time I have had to pay nearly $600.00 for the manifold gaskets. In fact, this time I have a leak in the entire cooling system caused by dexcool. I want my money back from these repairs!!!!! This is crap.

I have a 1999 Buick Regal which I purchased new in May, 1999. I have now had multiple repairs to the cooling system. Initially I heard a noise that sounded like water 'sloshing around' inside the car dash, but only the first thing in the mornings. Took it in and the Buick dealer had to replace the intake manifold (plastic!) along with some gaskets and Dex-cool. Next time it was another gasket under the throttle body assembly that had started leaking and I was getting a 'low coolant level' warning light although there was no sign of any leakage. Just the other day, I had to take it in again and this time they said that my radiator was very clogged up and needed to be replaced or flushed ($500-$800), my heater core may be bad too and possibly some water pump problems. I had noticed that my coolant bottle was getting a red looking gunk in it but since GM literature stated that there was no maintenance required of the cooling system for 150,000 miles I was not concerned. I mean, after all, I always take this vehicle into a GM dealer for their high dollar oil and filter chanegs and get their free inspections each time and they always said the cooling system was fine so who am I to question their Mr. Goodwrench experts. I had heard of a class action lawsuit about a year ago against GM and Dex-cool damages. When I asked my Buick dealer service representative about it, he knew nothing about it, but when he called me about my many recent cooling problems, somehow the local GM service representative just 'happened to show up' at the dealership and they went over my cooling system problems with the servcie technician and concluded that all of my problems were caused by someone mixing green glyucol based coolant with the Dex-cool in the engine. I mentioned that no one other than a GM dealer has ever touched my car, but also knowing that now since I have a GM technician, a Buick dealer service writer and GM representative on record that I had green anti-freeze in my car. I am fighting a losing battle my myself. I have already signed up for a class action lawsuit but have heard that a federal judge recently ruled that there could be no national class action suit. Any class action suit would have to be on a state-by-state action. I am interested in making GM live up to their responsibilty for a faulty product and to their 150,000 mile cooling system warranty. My car has 103,000 miles on it.

At 47,000 miles, my Malibu needed a full intake manifold replacement due to the poor engineering of the gaskets in the manifold. They are destroyed by Dexacool anitfreeze. This is a common problem with this engine and their solution was to release a new design intake manifold gasket w/bolts that have a thread locker adhesive added. You can purchase them at the GM dealership and take them to your mechanic. Unfortunately I found this out AFTER I spent $683.00 replacing the unit only to find out that in another 40,000 miles or so the same thing will happen. General Motors should have sent out letters to their car owners - I am the original owner- telling them about this problem or at least to the dealers. I think a class action law suite should be initiated.

Dex cool in 2001 chevy malibu purchased used in December of 2007. The coolant has caused engine problems with gasket need to be replaced.

I have also had an issue with te Dex Cool and leaking intake manifold gasket. At this point I am holding my breath and hoping that it was only the intake gasket and there is no damage to the head gasket, heads, or engine block. This leak occured in my familys 2002 Oldsmobile Shiloutte. I am very disappointed that GM would allow this to happen to so many consumers. Car reapirs and expensive. They can also be very dangerous and risk lives. An engine seizure in city traffic could cause serious injuries and even death. The irnoic thing about this is that my wife purchased the Oldsmobile while I was deployed to a combat zone. I am an Army mechanic and usually take care of our vehicles. I wasn't home to take care of our Ford Windstar and it was having a lot of issues that my wife was paying to have repaired. She was pregant and had three other children to care for so she sold the other car and bought the Oldsmobile so she wouldn't have to worry about a faulty engine. 4 years later, I'm getting ready to deploy again and will be leaving my wife with an unreliable vehicle. If she trades this one it, it will be for a Honda.

Head gasket and intake manifold gasket both had to be replaced, costing us close to $2000. GM knows of these faulty gaskets and should have recalled the vehicles and replaced them all. We paid about $23,000 for this vehicle new.

We took our 1998 Buick Century with 41,500 miles on it to City Chevrolet in Oklahoma City and found That our intake manifold gasket had been eroded by Dexcool coolant. We are now faced with an $800.00 bill to replace the gasket, and flush the coolant system. What should have been a $30. oil change has turned into a nightmare. We want GM to be held accountable for what this coolant is doing to engines and how corrosive it is. With this many miles, I shouldn't have had to even flush the cooling system yet!!!!!!!

After spending a few days reaserching my Venture's problems on the internet, I thought that I had discovered that G.M. had put faulty intake gaskets in many of their vehicles. I've found one site that is a petition to G.M. and the B.B.B. to recall the gaskets. Another site pertains to a class action lawsuit against G.M. that has been initiated in Canada over the gaskets. Your site says that DexCool is to blame. I sure don't know what is causing the failures, I just know that I'm a two-time victim! Starting with my 1999 Venture. Had to replace the intake gasket and water pump, for about $800. within a year, a coolant leak started up again. What do I do? Well, being the dedicated chevy man that I WAS, I went out and bought a 2003 Venture! Bought it from a chevy dealer 6 months ago. I did not start driving it then, I wanted to get every last mile out of my 1999, befor sending it to the dump. I suppose I'll hang on to that '99 now, and see if any lawsuits pop up! Back to the 2003... Two weeks ago, it was finally time to start driving the new one. The heater didn't work. I took it to the dealer, whom stated- intake gasket is shot. Needs $700. in repairs. They sold me a van with a bad motor, then they want me to pay $$$. to fix it! needless to say, I left there, and do not intend to return- ever. They did fill the radiator up, and the heater DID work for a few days. when I checked the radiator, the coolant level was very low. apparently, the coolant level sensor doesn't work either. the temperature guage never said I was overheating, but the next day, the motor started knocking VERY loudly when it's cold. This vehicle has only had license plates on it for exactly two weeks now, 79k miles, and it has had a bad knock now for 3 days! If it's not overheatng damage, then it's likely to be damage from coolant in the oil, contamination. What are the damages?? I do not know yet. I'm too scared to find out, because I can't afford it anyway! sure hope G.M. is forced to own up to their mistakes like Ford had to!

I own a 1998 Oldsmobile Cutlass, and just had it serviced. I was shown where the dexcool is now leaking on either side of the intake manifold, and with the coolant flush and replacement of the coolant with the reliable green coolant, plus replacement of the thermostat, it will cost a measley $1,000. This vehicle only has 68,000 miles on it. I have already personally replaced the intake manifold and water pump on my daughters 1997 Saturn. I was looking at trucks now that I am near retirement, but I will never own another General Motors product and will purchase either foreign trucks or a Ford. I will keep my receipts in case General Motors ever does loose a case or a class action suit as far as dexcool erosion is concerned and maybe one day I will get my repair costs back.

I own a 1999 chevy silverado. As it has been a good truck in general i too want to voice my complaint on this coolant. I have now had 2 heater cores put into this truck-at a cost of $850.00 each time. I purged out the dex cool for the old green stuff because i could see mud and crud all over in my coolant system.

We have a bus with a GM chassie that has Dex Cool in it. We have 48,000 miles on the bus. We are beginning to experience problems with gaskets and the radiator is gummed up. We are looking to pull the radiator next week and attempt to save it. We will flush the system and replace the Dex Cool with conventional fluid. Our prayer is that further damage can be avoided.

My 1998 Oldsmobile Intrigue has Dex Cool for antifreeze, I've fixed major gasket leaks twice, and had to replace the intake manifold, which had large pits in it, and was junk. I've never seen a intake in that bad of shape. My Pontiac has had gasket problems, and so has my son's Chevy, all have Dex Cool.

My car was leaking coolant. I took it to Firestone Auto service and to have a coolant flush done and was told that I needed to have the manifold and gaskets replaced. So today my car is in the shop, when they started doing the job they found that the water pump was bad. Also the the plugs need to be replaced. The guy told me it is just snow balling. Not sure what else they may find.So far the bill is $1,100.

I have a 1996 Buick Century. Despite what the GM dealer has said Dex Cool has caused many problems in my vehicle. Sludge started at about 20,000 miles, I have had to flush the system about ever 10,000 miles, replace intake gasket, and water pump. I have talked to trusted mechanics and they said Dex Cool is the problem. My car currently only has 73,000 miles on it. I switched to a different coolant and the vehicle runs much better, but I believe that the damage has been done and problems will continue to occur. It would be nice if GM would fess up to their faults, since from what I have seen and heard, this Dex Cool problem covers many years of production vehicles on the road today.

I have a 1997 GMC Jimmy and started having problems with it overheating. It had dex cool in it.

My daughter goes to school at University of Iowa. She has a 98 chev. calvalier. The car started overheating. I told her not to drive it when the temp gauge reads hot. I said she should take it to the chev. dealer nearby thinking the problem is just a stuck thermostat. The service manager told her they would diagnose it. He also said the fee would be $88 cause that is what the labor cost is per hr. The car was there 8am. the next morning. Not hearing from the service manager all day she called at 5pm. He said they were just bringing it in and couldn't diagnose it till tomorrow. I finally called him around 12pm the next day and was told the car had a warped cylinder head and the cost for repair would be $2,250. The car never had an antifreeze leak that my daughter ever noticed. Ifound a couple of other repair shops in the area and asked one of them for a second opinion. I called the chev dealership up and told them that was to much money to put out on a 10yr. old vehicle. The manager said fine and she could get the car after she pays the bill. A few days later she took the car to the other repair shop and left my phone # with them. I recieved a call within a few hrs. The owner of the repair shop said he has gone over the car and can't find a thing wrong with it. He thought maybe I was confused about the warped cylinder head. He said sometimes the thermostat gets stuck and the car will overheat. Just what I thought. I told him what the dealership said and he said that definetly was not the case. He asked me if he could change the thermostat and the temp. sensor. Isaid yes. He kept the car another day and everything seems fine. His bill was $230 a lot less then the dealership rippoff would have been. This fellow was courteous, kind and honest. I always thought that dealership service was honest and accurate. I own 4 GM vehicles and will never take them back for dealership service again. For them to try and rippoff a young out of town college student telling her she needs all kind of work done on her car when its only a minor repair is TERRIBLE.

GM Antifreeze has corroded and destroyed the heater core and other parts of my daughters 1998 blazer, despite the vehicle having only about 30,000 miles. I have been to multiple GM dealers who all denied there was any association with their coolant.

Sludge in radiator...had to have replaced. Manifold gasket had to be replaced also. Had transmission replaced. Could they have been a result from using the Dex? Again having transmission problems.

I too am a victim of having a very costly repair on my 2003 Buick Rendezvous because of DexCool. Last month I noticed my car had a leak. I first thought it was transmission fluid but when I took it in to have it looked at I was told it was coolant that was leaking and that my head gasket needed to be replaced. I had no choice but to fork over the $2000.00 it cost for the repair and they needed to keep it for 5 days to complete the job. I knew nothing about this problem until I started to do some research online. I'm disgusted at GM for not doing a recall. I know there is a class action lawsuit against GM and their use of DexCool in the state of Missouri. What about other states? Something needs to be done. I always believed in buying American made cars. Not anymore after this. No wonder the American auto industry is suffering.

i had a 1998 pontiac grandam and got rid of it because intake manifold gasket was bad. ithan bought a 1998 buick century with in 6 month it to started to leak .i reasearched and found out it was a common problem with gm .i contackted gm and was told take it to the dealer .the dealer confirmed it was the intake gasket and it would cause me 700 to fix. so with no other options i paid the 700.i thought this was the end of my problems nope 2 months later it started to leak again took it back to dealer was told it was anther gasket it would cause me 700 more.at this point i couldnt afford it so now i have no car.gm should recall this but they wont when i called them they denied it was a known issue

After reading the instructions in my vehicle's owners manual, I proceeded to follow the books advise by adding this antifreeze to my vehicle, but it wasn't long before the low coolant light started flashing again and now I believe there's a problem with my cooling system, so I searched the internet and to my suprise, there is an article warning GM car owners of using this type of antifreeze. I never knew about the law suit but now I would like to add my name to the list.

I purchased my 1996 GMC Yukon SLT with 5.7L engine new in April of 96. Within 20K miles, I could smell engine coolant, and the fluid in the overflow tank was turning dark. The dealer flushed/refilled the system. At 35K miles the same thing happened again, and the dealer repeated the flush/refill and replaced the radiator cap. At 60K miles, coolant levels began to drop, developed a rusty color and brown sludge--so had to repeat the procedure (with Dex Cool) at my expense. Finally at 80K miles I got smart and went with the tried and true conventional green antifreeze.

My husband owns a 2001 Chevy Silverado, and we just got it back from the auto repair shop where we had to have the water pump replaced. The mechanic (a friend of the family, so no worries about him fixing things just to make money) said that the DexCool corroded the gasket, and the water pump had to be replaced. He also insisted that we flush the system and no longer use DexCool, which he referred to as that orange [expletive] in the truck. Knowing he had our best interests in mind, I gave him the green light to fix the problems. $430 later, I can only hope that this was the extent of the damage done by DexCool. We will now only be using green coolant in our vehicles.

Spent over 300 dollars replacing faulty plastic intake gaskett on 2001 Chevy Malibu 7 months ago. Now vehicle is again losing antifreeze through blown head gasket.

This is a follow up to a previous posting I had made about my issues with the coolant system (and other odd, unexpected repairs).

How do I get on the class action suit against GM & On Star. GM sold me a Avalanche 2500 3/4 ton 2002 They are not making that 3/4 ton anymore and I can not get the ON Star Up Grade I am a 100% disabled Vietnam Veteran I need both those issues for safety. To me I payed $40,000 for false advertising, please advise me should I take this civil if there is no class action suite T

We are using Dex Cool in our chevy malibu..as recommended by GM, and now have damage to the engine.

I am also one of those GM owners with the replaced Intake Manifold Gasket,and My Water Pump replaced too. Now I found out that my Head Gasket has a crack in it and is leaking Coolant into my oil. I own a 1996 Pontiac Grand Prix SE, the car is 12 years old. It was given to me by my deceased Parents. This car means the world to me and I am worried sick that I will soon lose it if the Head Gasket blows. It burns me that a big Corporation like General Motors are so blind, deaf and above all stupid when it comes to taking care of their customers after they buy their products. This type of nonsense has been going on for years and years. All GM thinks about is the BOTTOM LINE.

I am having problems withthe cooling system,using DEX_COOL.At presant I am haveing intake gasketsreplaced on a 1997 chevy S10 blazer with the 4.3 engine.I had changed the coolantabout 4 years ago.The vehicle has 128900 miles.I am hopping that it did not ruin my head gaskets. My mechanic who I have used for several years said this is the most corrisive collant he every ran across. Also been told this by othermechanic and auto store personel I am on disability and did not need this problem.I had 2029500 miles on my 1988 blazer S10 with the green coolant.and never replaced an gaskets

I purchased my '02 Grand Prix in 2002. It was a program car and upon the first oil change, the service shop showed me the sludge from the Dex Cool. Within two years, on cold days, my low coolant light would come on indicating I would have to add more. This went on until the beginning of 2007. After receiving the class action notification and consulting several service techs, I made the switch to the traditional anti-freeze. That was great until October 2007. As would luck would have it, the day I made my last payment, my check engine light came on and that cost me another $275. I was told the system did not look like it had been flushed properly when the switch was made and that it had to be done. I was also told I needed a new thermostat. It's now January and I'm experiencing problems. On a bitter cold day, my car's temperature was fluctuating up between 160 to 210. It would not produce warm heat in the cabin. When I called my local service shop, they suggested that it may be the intake. Looks like, according to other's testaments, that it may cost me up to $1000 for something like that. I've been a pretty loyal GM and Pontiac owner, but this car has failed my expectations. I had the entire front end replaced before 36,000 miles due to rack leakage and bad wheel bearings. I've had a fan relay go bad. The stereo display acts up on some days. It keeps blowing the bulb in the rear window brake light. And, now the coolant. I also know a co-worker who just had to have a new engine in their Envoy because of the Dex Cool situation. How sad when their vehicle was even newer than mine. I ask what's next for GM?? Or maybe, I shouldn't ask and just get rid of it before the nickels and dimes start!

I have a 1999 Pontiac grand am and i fouund out that the antifreeze was leaking onto the garage floor. I took the car to anastos brothers and they had to replace the intake manifold. This is the second time this has been replaced because when i first purchased the vehicle and it was under warranity McEndtyre also had to replace it. About two months later i had to get the oil changed in my car the mechanic found out that there was sludge in my oil. I then again took the car back to Anastos Brothers at which time they then again tore the engine apart and had to replace the engine manifold. Two weeks after taking it there and getting the manifold replaced the car was heating up and i took it back to anastos brothers and they had to replace the head gasket and the intake manifold again, they also had to flush the engine. The car has started to make a loud tapping noise and is now going back to the garage for furth3r repairs.

Purchased a 99 Chevy Blazer for our daughter for college in October 06. At 84,000 miles started leaking antifreeze and the repairman said the antifreeze looked like sludge and this is a common problem with GM vehicles. Had to have intake manifold gasket replaced to the tune of $700.00. At 85,000 mile had to have the heater core replace to the tune of another $731.00. This is unacceptable and we will never buy another GM product nor will we let any of our 4 children buy one either. I have a 98 Ford F-150 Econoline van with 180,000 miles on it and have not had half the problems with this GM Blazer. It is a piece of junk. What a shame

Hello, I would like to comment on the Dex coolant issue. I have read all the complaints because I just got back from having my system flushed. (I would like to caution you all about shops taking advantage of you and charging you for things that were not needed.) Let me explain. I paid to have my system flushed and thermostat replaced at Midass suggestion because my heater was blowing cold air. $230 they charged me and it did not fix the problem. There was a happy ending to this story because when I took it back they flushed the system again and my heater is now working. Some shops may tell you that you need work that is not really needed. For instance your heater core may be plugged and instead of replacing it you may be able to flush it. In defense of my statement about shops telling you things that are not true, I had Brunel Tire Factory replace my front differential seal two times and now for a third time this weekend. The last time they told me I had a coolant leak and led me to my truck to show me. Low and behold they show me a green trail of coolant dripping from my engine. It is a good thing I did not fall for it and only because it was before Christmas and I could not afford the money It was only when I took my truck in to have it flushed that I realized I do not have green coolant it is orange or red coolant I will leave it up to you to figure out how I happened to have green coolant dripping through my engine Anyway, I have not had the problem with leaking gaskets as many have had and I will not say that your leak was not legitimate. I will say however that I will be flushing my system every two years at least because I think the Dex coolant may have a tendency to gum up easier if it is not changed out more frequently. Regards,

2003 Pontiac Aztek overheating, engine hot light comes on ,Antifreeze sludge 2001 overheating ,low coolant light comes on ,smell burning anti freeze.

I have a 97 Lumina and of course used the Dex cool per Chevy recomendations and had to have extensive repairs done to my car. Not only did they have to replace the gasket, but they had to replace the manifold and the head.

dexcool ruined 1996 gmc jimmy engine.

At 85k miles my car started getting hot, smelled coolant, and idled rough. Mechanic just called me and told me coolant in cylinder due to intake manifold gasket. Since then i have read all kinds of complaints and come to find out, GM knows dex-cool causes this issue, yet they want to take no responsibility for it. How is there no RECALL at this point. Issue is going to cost me around $1000 to fix. Anyone ever gets a class-action; I'M THERE WITH YOU because this is ridiculous.

On January 11,2008 during a maintenance service checkup at Midas Auto Service Experts. I John/Shirley Douglas was inform by a Midas Technician, that our car manifold gasket has failed under it's coolant systems, it has been leaking and running out and building up around the car's engine block, and that is the cause of the burnt fluid odors...

I carried my 199 Pontiac Grand Am GT to the shop two weeks ago and had to have an intake manifold gasket installed. The mechanics, who I have used for years, informed me that it was the dexcool antifreeze that ate through the gasket. My car being older it took it as part of car ownership. A week later, I took my wife's car in, same exact problem. Both cars cost me $2000.00 that I could not afford. I went to do some service on my dad's Pontiac Montana and the reservoir was empty. I haven't gotten his into the shop yet but I wouldn't be surprised if it is leaking also.

My dex coolant isn't to be replaced yet but it is already steaming and overheating.

I join the ranks of dissatisfied GM customers who've had problems with Dex-Cool anti-freeze. The Dex-Cool in my 1999 Chevy Suburban destroyed the water pump and intake gasket allowing coolant to flow directly into the engine block. The coolant did not last as long as advertised - ~95K instead of 150K, and I understand it actually laster longer than most other people who've experienced the same problem. The question still remains - why would the manufacturer continue to use a product they know is so corrosive? Bottom line for me: although I love the Chevy Surburban, my next vehicle will not be a GM product. Can you say, Honda, Toyota, or BMW?

2001 Chevy Monte Carlo with 56,000 miles leaking Dexcool from intake manifold! Known problem by General Motors! GM will not help cover expence of this known problem they are having with many many GM vehicles!

GM has had a lot of class action suits claimed against them for a faulty gasket. This has caused thousands of auto owners costly repairs. I've been searching the internet and found several sites with these two issues: Dexcool antifreeze and a faulty gasket. Apparently, the anti-freeze and or the gasket is the culprit. I have that problem in two vehicles.

In Feb. 07 I found out that my 96 Pontiac Grand Prix had a leak in the lower intake manifold gasket and was leaking coolant into the oil. The car had close to 130,000 miles, so I wasn't all that surprised. I performed the work myself and saw that the heads were pitted where the manifold sits. That's when I read about the complaints about Dex-Cool. During the same month, my co-worker with the same car also had the same problem. My aunt has a 2000 Chevy Malibu that also had the same issue. I recently purchased an 03 Pontiac Bonneville which has 35,000 miles. I smelled antifreeze and started looking around. What a surprise....the lower intake manifold was leaking coolant to the outside of the engine. I was so mad since I had the car for only about 6 months. A car with 35,000 miles should not have to go in for about $1000 worth of repairs to the engine. GM and Dex-Cool states that the coolant is good for up to 100,000 miles. I'm barely 1/3 of the way there. I should have drained the coolant the day I bought it and put the regular green coolant in. My other GM cars have been drained and replaced with regular green antifreeze. I never put this stuff in my vehicles again.

I have a 2003 Chevy Malibu that has almost 60,000 miles on it. I am having to have the manifold and intake gasket fixed and there is oil leaking into the coolant. My extended warranty company will not cover the Fluid Flush saying they do not know how oil gets into the collant. After reading other complaints I see that this may be a Dexcool issue. Now that I know this- I think back to my Pontiac Grand Am that I sold to my brother. It had to have a new water pump, radiator, and then the heater core failed as well. All could be related to Dexcool.

ive owned my 2002 chevy venture for about 4 months now it has roughly 112,000 miles on it, i understand this is a lot of miles, but i've owned 3 other GM vehicles and never had a major problem with them, but anyways, 1 month after purchasing the vehicle the AC condenser blew a hole in it and i had to fork out 2,000 for that, and right now im in the middle of a new blown head gasket that formed the day i got a coolant flush from jiffy lube, i took it back to jiffy lube before i knew about the blown head gasket to see if it might have had a clog since it was overheating and wasn't blowing any warm air. Drove it across the street to a mechanic then they told me it was a blown head gasket, ive been hearing A LOT of these same problems happening and also some stuff about class action lawsuits... im wondering if the dexcool (which is the worst fluid ever designed) isn't deteriorating the headgaskets causing them to blow so easily... any information or remarks would be appreciated

We experienced a loss of heat in our 1996 Lumina. I noticed a lot of pasty gunk around the radiator cap. I brought car to our mechanic. He informed us of the Dex-Cool issues and said our lines were very corrated and our water pump needed replacing because of the build-up. He cleaned the lines and installed a new water pump with a cost to us of $215.25.

i have a 1999 gmc yukon bought brand new,have already replaced water pump and intake gasket, now am losing coolant and overheating not leaking on the ground,probably a head gasket,after reading all the problems on this website i am inclined to believe it is a problem with general motors and the dex- cool coolant.

I purchased a new 2000 Chevy Monte Carlo with approximately 325 miles. In January, 2005, I noticed some antifreeze dripping in in the cabin on the passenger side. When I took the car to a local mechanic, I was informed I needed a new heater core. This was replaced and new antifreeze was added per GM guidelines. February, 2007, I had to have the radiator flushed again due to a dark sludge in the radiator that was mistaken for oil. The same mechanic that replaced my heater core also informed me that I had a head gasket leak and the oil was seeping into the radiator. When I took the car for a second opinion, it was discovered that this appearance is the result of Dexcool breaking down in the vehicle under normal use. January 2007, I had to have the radiator replaced because all gaskets were leaking and the car would not hold the antifreeze. This radiator replacement is only good for 40,000 miles.

As with many others I read about, Dexcool seems to be a problem. About a year ago the local dealer told me that the back of the intake manifold is leaking radiator fluid but not to be concerned unless/until the water gets in the crankcase. The repair is about $900.00. From All the complaints I read about, and over several years, many with leaking intake manifolds, General Motors should step up the the plate and do something about it.

Wife's 2001 Impala LS started having mechanical difficulty (accelerater pedal has to be tapped loose in the mornings) a couple of years ago. Took car to local Chevy dealership, but they said they didn't know what the problem was. Then took the car to our local Firestone and they knew exactly what the problem was - the coolant DexCool.

Intake Manifold Gasket needs to be replaced on 2003 Buick Rendezvous at 85K miles, appears GM DEXCOOL culprit. Coolant was warranty for 100K miles. Car is out of warranty. So I'm stuck with cost.

I spent $906.00 on Feb 6, 2006 for the intake set at Rad Air in Garfield Hts., Ohio. Dexcool is involved here. I took my car in today, Nov 23, 2007 for a standard oil change and am told that the engine oil is starting to get contaminated with coolant/antifreeze which indicates that the lower intake mainfold gasket may be deteriorating and requires replacement. This is the same thing that occurred in 2006, and I understand there may be a class action lawsuit with GM about this very thing. I have all the receipts and paper work, and would like to be included, if possible. Thanks

I'm interested in a filing a class-action lawsuit against the makers of Dex Cool used by GM. On 8/14/07 I brought my car into my usual mechanic for a standard oil change, at which time, the owner of Auto Medic, Kim, informed me that I had transmission fluid mixed in with the coolant and that my cooler lines in my radiator had a leak. I had to get a new radiator and it cost me $703 including tax/labor. When I returned to pick up my car, I asked him if he used Dex Cool and he said yes, that's what the recommended coolant for GM cars is.

My wife was complaining about smelling antifreeze while she was driving. I popped open the hood and did see some antifreeze on the side of the engine. I had it washed off and drove it to the garage, to have the oiled changed. The mechanic at the garage notice the antifreeze once again and told me of a similar problem they had with their son's car. I took it to a garage here in town, I bought the car as used, so I had no warranty. Sam's Garage, made a phone call to a GM employee, who said, unofficially, that they were having problems with the Dex-cool.

I have a '96 Pontiac Sunfire SE. have had it for about 4 years now. I've always had issues with the coolant (ac not working, heat not working, overheating). As of late, it's been acting pretty strange. Last night on my way home from work, the temperature went from being pretty normal to going all the way in the red. I was about five minutes from my house, so kept driving. It cooled down a bit, but not considerably. This morning, I checked my fluids and sure enough my coolant level was almost completely dry and I noticed wet spots on the pavement under that side of my car. As I was getting ready to head back indoors, I noticed for the first time a little sticker telling me to use only Dex-Cool coolant. When I got to my computer, I googled Dex-Cool and came upon this consumer affairs site with all these complaints about the coolant and GM. From what I've read so far, I'm probably looking at a repair cost of at least $500, unless it's completely screwed my engine. The car isn't even worth that much. Y

I purchase a 1998 Buick Century in 1998. Problems began immediatly after purchase with overheating. Dealer replaced water pump then a thermastat so on and so on. In 2006 I talked to a mechanic that use to work for a GM dealer about my car and the problems I had been having (overheating, no heat, no air, lifters sticking etc. etc.) He opened the hood and before he did anything else said a 3.1 engine using dexcool no doubt. He ask me again how long I had been having the problems and i told him from the begining.

I own a 1998 Chevy Blazer 4x4 and as soon as i bought it with 69,000 on it i got the cooling system (Dex cool)flushed at a GM dealership, assuming it's previous owners may not have done so. This fall (2007)i went to use the heat and noticed my temp running on the low side and only slightly warm heat. So i changed the thermostat myself and a few days later a coolant leak started. I think it's the water pump, which is not GM or anyone's fault, they just randomly go out. I attempted to change the pump myself, but found i needed a special wrench to hold the pulley in place to remove the fan/fan clutch assembly, so i had to put it back together and take to a local shop. I would rather do my own work however so i know it's right. I'm waiting on the mechanic's results. It may not even be the pump, but upon my analysis thats my best guess. so we'll see

1997 chevrolet motecarlo 3.1 engine dexcool /intake leak

I purchased the 2001 Buick Century with 9 thousand miles on it. I have driven it for 6 years with regular oil changes. It now has 74+thousand miles on it. Last year, I had the cooling system flushed due to the Dex-Cool gunking up in the cooling system. The auto shop said the Dex-Cool has to be flushed every 5 years or 50,000 miles. This month -November 2007- the Lower intake gasket started leaking in one corner which requires an expensive repair, and flushing of the cooling system again. From what I have found out from the repair shop, this incident is very common with the 3.1 Liter GM engine. I believe GM has made the engine in such a way as to incur expensive repairs.

The Dexcool problem in GM cars appears to be the culprit in my problem car as well. My neighbor discovered the problem in her car and made me aware of it. I took my car in to the dealer in April 07 because the temp light was coming on frequently and the car was overheating. The dealer replaced the water pump but my car continues to overheat and now I'm reading about ruined engines, my car has 82000 miles on it now and I'm concerned that the engine may be ruined due to the Dexcool problem. After my neighbor told me about the sludge clue under the radiator cap, I looked at mine and it appears very suspicious, rust colored sludge is evident.

I purchased my Cadillac Deville used 2004 and according to the manual I am to use Dexcool antifreeze. In April of this year I began to experience my car smoking and driving real sluggish. I then took my car to my mechanic and was told the gaskets needed to be replaced.

Dex-cool problems - heavy sludge under radiator cap, mechanic says repair will be $750 and is caused by dexcool. Who knows how much this will end up costing...

It's more than just the coolant itself. There are a number of factors at work from what I have researched. The intake manifold gasket fiasco (or head gasket issues to a lesser degree) is a contributor to the problem. If air gets into these systems, they'll sludge up.

we recently bought a chevy venture from a dealer in new jersey. we had the car about a week when it started running hot. i flushed the radiator and refilled with dexcool. used the minivan for a day and checked the raditator it was already turning brown and sludgy. drained and refilled with dexcool used for about a week. checked and needed to add more antifreeze. took it to my mechanic who has told me i need a new engine it is going to cost me over 1000.00 that i can't afford. can someone tell me why with all the complaints listed on the consumer affairs website why this product is still on the market and is there a class action lawsuit i can get involved in.

1998 Chevy Blazer. Overheating peaks. Took it to the dealer and like you said heavy sludge buildup under the radiator cap. The tech. said your going to need an acid flush. That being done $250.00 less than a week goes by. Now the Blazer doesn't want to run (no Power) Called the garage I had to have it towed to the garage. Looks like the acid flush damaged the intake manifold gasket.

Throw this complaint in with the other Dex-cool, GM rants. I noticed my 2002 Alero (69,000 mi) had a significant coolant leak coming from the engine.I also noticed the sludge in my radiator fluid reservoir. I figured it was a loose clamp on a hose or something minor, until I noticed it was running down my engine block. I took it in to get an estimate. Then they tell me about this lower intake manifold gasket. I didn't like the price of $700 for just parts and labor, not including the radiator flush and all. So I started searching the net to see if I could find out how to fix the stupid gasket myself and I was amazed and horrified to find all the people going through the same thing as me, and according to my fellow GM drivers, things are going to get worse......much worse. As far as I'm concerned, and I think all of you will agree, cars that use Dex-cool were lemons as soon as they came off the assembly line. I almost have my Alero paid off.......or so I thought. This sucks! I'm going to buy a Toyota or Honda.

I dont see how you people are going to blame coolant for most of your problems. seals go bad, thats all there is to it. and they go even quicker when not lubed prior or installed right. I've ran dexcool in 4 dif. chevys for their whole life and had nothin but expected problems. millions of people drive their chevys everyday with no problem, ever think of that? maybe you should think about who you take your car to, to get it fixed. i do all my work my self so i know its right, and never had problems. most of the stuff explained are things that regularly go bad, and your going to blame the coolant?

It sounds like the DexCool got to my car also. Just left the Mechanic and he said I have a cracked gasket. I don't know if I even want to fix it. Time for a foreign car ASAP Toyota just recalled floor mats. Why can't GM recall something so serious??

Am second owner of a 1998 GMC Safari Conversion van. It was traded in by the prior owner on a newer vehicle after being taken in the a GMC Dealer with an overheating complaint. After we purchased it, the selling dealer reimbursed us for a radiator repair of $188 to replace a cracked intake side tank on the radiator, and subesquently it was determined that an intake manifold gasket was leaking (about $580 to replace) the DexCool coolant. Hopefully no further damage was done to the engine.

My 1999 Pontiac Montana started leaking coolant a few months ago. Just a small amount at first but now it is several ounces a day. So I brought it in to the dealer. They say the water pump seal and intake manifold gasket need to be replaced. My GMC has DexCool in it and it appears to be the culprit. Is there nothing that we as consumers can do besides never buy another GM product again?

I am adding to your list of complaints for the DexCool Radiator situation. I bought a 1997 Chevy Lumina on Nov.4,2000 from a private owner, who probably did me a favor. He had the DexCool antifreeze taken out and replaced with the regular green antifreeze. In spite of this, I have had to replace the antifreeze November 15, 2002. Then November 2003 and January 2004 it was suggested that the manifold gasket be replaced.I replaced the serpentine belt. Then in March 2004, I replaced the leaking intake gaskets and the oil. The coolant and gaskets had to be replaced. On October 2004, I replaced the fuel pump. On November, 2006 I had the engine and engine block flushed and the coolant replaced, again. That is only the coolant situation. There were others that I replaced and repaired. The gas gage didn't work and twice I ran out of gas in the middle of the road. I got it fixed. Hopefully, with all the money that I put into my Lumina, I may have peace of mind for a while.

I have a 1996 Chevy Lumina APV that came with DexCool antifreeze. The owner's manual says it's good for 150,000 miles. At 82,000 the water pump gasket began to leak so had pump replaced. The mechanic said the gasket and seal had been damaged by the DexCool coolant. He drained, flushed and refilled the system with regular antifreeze. Two thousand miles later the intake manifold gasket began to leak which cost me nearly $800 to repair and that mechanic also said it had been damaged by the DexCool coolant that came in the vehicle.

Bought New Pontiac Grand Prix in 2000. Coolant was DEX-COOL which was suppose to last up to 5 years and 150,000 Miles. Car was very will maintained and engine coolant never low. At 15,000 miles I detected sludge and browning of radiator fluid. Took to dealer who said radiator cap was bad which he replaced, but did not flush system or replace the Dex-Cool. I wrote to GM customer relations and asked for a complete flush with new radiator fluid which they did to keep me happy. Withing a few thousand miles the system once again sludging up. One week out of warranty the heater core let go. It was fixed under warranty after much complaining. About one week later I noted the radiator leaking at which time a traded car in as I no longer had enough confidence to drive it anywhere. Since then, my son in law has a 2005 Buick with dex-cool with 17,000 miles showing the exact same symptoms of sludge. Also drove a brand new GM rental with 3,000 miles on it. It also already had minor sludge build up at only 3k.

water pump,heater core,in my chevy. water pump,and now head gasket in my cadillac.the problem being dexcool anti-freze

I own a 99 Olds Cutlass that has 62000 miles on it. I am having problems with the coolant system like every one else that has Dex Cool in the vehicle. It is going to cost me $1000. to repair.

Due to apoorly engineered product, DEXCOOL, I have now had to R/R major portions of both the cooling system (heater core, freeze plugs, radiator, etc.), and a host of bystander components from system leakag on my Chevy S10. There is no excuse for GM not to be held accountable for such a pernicious product. The truck has spproximately 75K miles, and is only lightly traveled. My perception regards the volume of complaints to be an obvious result of shoddy engineering, slipshod product testing, and profound contempt of their customers' support and protection.

My 2000 Chevy Blazer has had a lot of problems with the cooling system. The dex-cool Coolant kept disappearing. Now I found that the coolant has been mixing with the oil and the oil has turned to something resembling butter. Now I have to replace the head gasket.

The use of plastic parts in the engine of my 1998 buick lesabre has cost me much grief and money.

We recently purchased a 2004 Volkswagen Passat with one of the major selling features, having Onstar. After attempting to subscribe to the service, I was notified that I'd only have service for two months longer and afterwards the entire feature would not work in my car.

Bought a Chev Venture Van (year 1998) Holidays with family and engine overheats. Took to repair shop replaced engine temp sensor and thermostat. System flushed and new dex-cool installed. Was fine for approx 1200 kilometers and same problem. Took it back to budget brake and muffler and head gasket is blown, camshaft sensor out of calibration, bent valve, and still overheats at any given moment.

I have recently discovered similar problems as everyone below, as well as my sister. She owned a 4door 98' pontiac grand am, i own a two door pontiac grand am se. her car had the sludge, and a gasket blow w/ oil/dex-cool/and fuel all leaking together. she is now car less. i am now spending another 700 on replacing my heater core and flush the system of all dex-cool, but luckly will have fixed this problem b/4 any other major work is needed.

the dexcool antifreeze that is required in my 1998 chevy blazer. has cost me lots of money i have had numerous heater coils, the antifreeze and oil is mixing together and had to replace the water pump all of the dexcool antifreeze.

I own a 2001 2-dr. Blazer,just bought it 7 weeks ago!I just had the intake manifold.gasket,thermostat... replaced as well as all the red mud the Dexcool made in the system flushed and replaced to the tune of $600.00.I called around and found this to be a very common problem with GM products across the board.The mechanics I've spoken to see this in everything from Cadillac to Tahoe all years and the one who got my business had 3 waiting to be worked on the same day I was there and said that wasn't unusual for a days work for them!Where is the accountability for GM in this? I own a 2000 Impala LS with 73,000 miles on it, and have the same crap in the radiator and will have it flushed out and replaced ASAP,before it developes the same thing if it isn't to late already.I had the flush and fill done 3 years ago(30,000 miles) and they put the same crap back in it then and it looks just like mud in it right now!

I have replaced my water pump twice in less then 3 years. Now i Think I have to replace my intake manifold gasket and how knows what else. I can not drive my car again because I am losing all my coolant.

1998 Chevrolet Blazer 4.3 with DEX-COOL vehicle mileage 208K... Granted this vehicle has higher mileage but, rest assure it has been well maintained and kept up. I have had to replace the water pump a total of 3x and thought pump was out again but found out the manifold gaskets and other gaskets have now failed due to the fact the DEX-COOL has corroded them to nothing. But, worse yet the dex-cool has infiltrated into the vehicles oil causing bearing etc to seize up due to no lubrication. Keep in mind I first had coolant system flushed at 30k mileage, then again on each occurrence of water pump failure. Now the engine must be replaced as it has seized due to dex-cool. Dex-cool labeled as high mileage coolant should be labeled corrosive and do not use unless you want catastrophic engine failure!

1999 Buick Century with leaking intake gasket due to use of Dex-Cool Antifreeze eating away at gaskets. Brown sludge is collecting in upper radiator and recovery tank even after a coolant flush. Less than 98,000 miles on this well maintained car.

A year ago I purchased a 1999 Pontiac Grand Am and have been having chronic cooling system problems because of Dex-Coolant sludging. I had to have my intake manifold re-done and when the mechanics flushed the sytem they said they have never seen coolant sludge plugs like mine before! 3 months later I had to have the system re-flushed AGAIN because of sludging. Now only 9 months later I am seeing sludge build up again and need to have it re-done to avoid more major engine damage!

I own a 2001 2WD S-10 Blazer with 87,300 miles on it.This car has just had to have the manifold and gasket,head gaskets,thermostat,hoses clamps... replaced all because of this coolant problem that GM has caused by using this product.Every shop I have talked to has seen this in all GM vehicles from sedans to SUV's.Every body I have talked to says the same thing about the coolant used, turns rust colored or muddy and erodes the components,especially metal ones,that it comes in contact with.This s-10 was leaking water out of the thing as fast as I could put it in the recovery tank or radiator when the thing wasn't hot.This was a$600.00 repair for me and 2 days without a vehicle,A BIG DOLLAR EXPENSE! If there is some class action going on about this include me IN!There is no way that a company should not be responsible to its' customers in a matter such as this.I can see that there are plenty of others that have the same problem, and from what I am told by mechanics in my area,many more that will have it happen as well eventually!The mechanic that looked at my car has 3 more GM products just in the last 2 days that have the same problem.They were a Tahoe,Suburban and an Impala and that number isn't unusual for him to repair! I have owned a 2000 Impala for 5+ years now and I'm beginning to wonder if preventative maintainance is in order for this one,or trade while it's paid for as P.M. instead! Thanks for your time, Glenn Foster

We purchased a 2000 Cavilier brand new, within 2 years the car had to have a new head gasket replaced, which needs to be replaced again. The car was sold using Dexcool. Other issues with the car include a bad fuel pump and at one time it was taken in for a bumping sound in the front passenger wheel well...come to find out when the car was manufactured a strut was put in backwards??? This outcome was stated directly from the dealership where the car was purchased.

dexcool got me over $1300 in repars and counting intack gasket thermostat ext in my 2000 chevy impala

I currently own 2 Pontiac products (1998 Transport and 2001 Grand Prix). A couple of years ago I had the intake gasket replaced on the Transport due to coolant leaking on the back of the motor. The mechanic I called described the problem as soon as I gave him the year and make! He said they do them all the time. The problem? DexCool. My Grand Prix exhibited the same problem the following year after 120,000 relatively troublefree miles. Luckily(?) I had major engine problems and replaced the motor before I wasted money and time on the gasket. After 7 months the low coolant indicator began acting erratically. I wasn't losing any coolant but when I removed the rediator cap to check it out the telltale sludge was there. Can the DexCool be replaced by the green stuff? I filled out a form for a class action lawsuit last year but no one ever contacted me. There should be plenty of evidence. All the mechanics (except GM dealerships, of course) are aware of this issue.

My girlfriend and I were on our way to Tennessee for the Labor Day long weekend... I noticed Friday night that my trucks (Chevy s10 2002)temperature gauge was running a little hot, but never went passed 210(half way). So Saturday afternoon I decided to pop the hood and check things out. When I popped off the radiator cap the antifreeze was brown muddy looking, rust deposits stuck to the inside of the radiator and the radiator cap seal was dry rotted and rusted.

I've had to replace my Intake Manifold Gasket with only 58,262 miles on my 1997 Buick Century. I've found online that GM has had a problem with this for years. I would like them to pay for my last car service and any other problems caused by this.

Just got back from getting my oil changed in my 2000 Chevy Venture. Was informed I have oil in my engine coolant, indicating a bad head gasket. Manager told me about similar problems on same make caused by Dex-Cool Just paid it off and cannot afford a new vehicle, seeking retribution if what I read is true.

I have a 2000 Pontiac Grand Am. My low coolant light came on. I purchased Dex-cool antifreeze to put in it as my GMC manual request that only this type of coolant can be used in this car. Coolant light went off but a few weeks later came back on. I carried the car to Meineke car care center .I was told it was because the Dex-cool had ate up my gaskets.

I bought a 1997 Pontiac Transport brand new in June 30,1996 Had to replace the engine at a cost of 2,200.00-- When my daughter took her Pontiac Transport later to Firestone and had to spend over 2300.00 and the mechanic at Firestone told her about the problem with the DEXCOOL it made me realize that I did nothing wrong and that the GM Dealer treated me very shabbily.Will never buy another GM. My dayghter also will not buy-She just bought a new Toyota ALL Green Vehicle

I had a 2001 Chevrolet Impala the low coolant sensor kept going on when I took it in the dealer told me it was a bad sensor and that they needed to replace the sensor and also I had a bad intake manifold gasket and I would need to replac that also and it is not covered under the warranty the bill was going to be over $600 I took it to a local Mechanic he flushed the system numerous times replaced the sensor and refilled the syytem with regular antifreeze I sold the car with just about 90,000 miles and to this day about 2 years later is still running . I have a 2002 Buick Century with about 50,000 miles same problem we flushed the system and replaced the sensor we may still have to replace the intake manifold gasket as it may still be giving me a problem. I presently own a 2004 Chev impala and have already flushed the system

My Pontiac GrandAM 99, had an intake manifold gasket leak and I replaced the water pump. I believe this is all linked to the orange muck called DexCool that was in my coolent reservoir.

Intake gasket on my 1996 Chevy Tahoe, 97,000 miles on it had extreme malfunction after using GM Dex-Cool Prestone Antifreeze/Coolant. My daughter who was 20 yrs.old and by herself was driving this vehicle and was 300 miles from home when the Intake gasket malfunctioned. It left her stranded on the side of the road for 6 hours till I could get a wrecker to haul her and her vehicle home.

I inherited a 2000 Chevy Venture minivan from my grandmother in 2005. It had been dealer maintained until then when I took up the maintenance. It now has 51,000 miles on it. Much too few for coolant to be spewing out from somewhere around the serpentine belt. Also noticed the brown sludge when I opened the radiator cap. I do not know what to do.

I own a 2003 Malibu, 40,000 miles. I had to replace the intake manifold gasket and water pump. There has been many, many complaints about Dex Cool coolant causing the erosion of the gaskets and GM has done thing to remedy this. They should have a recall. I have the old parts.

I took my car in for an oil change and was told that my intake manifold gasket needed to be replaced. This appears to be a typical problem for GM cars made in the mid 90s to early 2000s, and I'd like to support any legal action against GM. I'd also like to make GM consumers aware of a class-action suit being filed by Girard Gibbs, LLP, which I was notified about by www.carcomplaints.com

My vehicle had 27485 miles and had to have the ead gasket replaced, now my vehicle has 85746 miles on it and the gasket or water pump needs to be replaced. All stemming from dex cool.

I am just as angry as all the others for being informed that OnStar will no longer function in my 2002 Chevrolet vehicle. I cannot believe that with all the advances in cell phone technology there isn't some way to upgrade the analog vehicles. I really feel like I have received the 'Onstar treatment' and the commercials just rub it in.

I had owned a 1997 cadilaac,at 119,000 miles the head gasket failed. I no longer own the vehicle.

I have a 2000 Chevy Venture Van, I had a tune up and my radiator flushed when I was told it looked like I had oil in my radiator. My check engine light was on found out my CamShaft Positioning sensor went out too.. So decided to wait on the oil in my radiator to see if it had anything to do with a stop leak we had used. But van still started to over heat a week later. Then I found this web site.. Contacted GM and even sent them the link to this web site and still haven't heard anything from them.. Shame on them for taking advantage of people like this.. My husband is a disabled vet we can't afford to continually replace parts in the van, but we have to have it and can't afford a another car. Just hoping and praying that it won't destroy the engine before we can get the money to have it repaired. He drives a 2000 Trooper we are just hopin and praying his doesn't develope the same problem since it too uses the Dexcool.

I own a 1999 Oldsmobile Bravada that had Dex Cool coolant. It has been regularly maintained and the coolant was flushed and filled just about 30,000 miles ago in early 2006. This week, I noticed the temperature gauge was running a bit above normal and I could smell a coolant odor. After the car cooled, down I opened the radiator and found a thick sludge compacted throughout the inside. This sludge was the consitency of clay and had literally formed over the course of a few weeks. It completely jammed up my cooling system to the point that it was no longer functioning. I had to replace the radiator, water pump, and all hoses, as well as have the water jacket and other cooling components flushed out with a special cleaning product to break down and remove the sludge. The mechanics said that they see dozens upon dozens of vehicles with Dex Cool related problems each month. I'm lucky to have gotten out of this with a $600 bill. A few more miles with this faulty coolant and I would have likely had a $2500+ repair bill. If you are driving a GM, make sure your coolant is green and not orange/red! And please complain about this product...it is costing consumers when the fix is a simple $50 flush and fill with an alternate product.

1998 Pontiac Transport, After 70.000 miles I too had a intake gasket fail and now 50.000 miles later, it is time once again for another intake gasket. also under warranty,Pontiac dealer in San Bernardino Ca claims he never heard of Dex-cool troubles. Claims if it were bad they would not still be using it antilock brakelight came on and now once again lights on. other common problems shared with owners of this model are, dashboard lights going out, wire harness decayed by battery acid, rear windows no longer work

After 55,000 miles, I had to replace the intake manifold gasket in my 1998 Olds Cutlass after the car was leaking coolant. Like many people before, it cost $700 and was due to a design flaw in the vehicle. I feel I should be compensated for this problem. It has caused other engine damage that I am still dealing with.

I own a 2003 LS Edition Malibu! When I bought the car from the dealership it had 59,000 Miles on the car. As I took it home withim a month the coolent light came on I cheked the coolent and It was full! But the water resivor was like a rusty brown sludge!

My 1999 pontiac grand am recently blew a gasket causing permanent damage to my engine. Repairs are costing me between 1,500-3,000 dollars. I had multiple leaking problems with the dex coolant causing other major problems (fuel line damage/replacement, overheating) to my car. I recently paid well over a thousand dollars for those repairs alone and I have the receipts to prove this. If there is any way I can get in on the class action law suit I would appreciate any information that could help point me in the right direction.

I have a 2000 Pontiac Sunfire. I bought it in 2003, and just added anti-freeze to it for the first time last month. I have had to do it twice again since then, and my girlfriend's father says I could have a blown head gasket. I read your article and now I am afraid that I am going to have to spend money that I don't have to fix my car! I am a college student and I cannot afford thousands of dollars in repairs! I will NEVER buy another GM car until they fix this problem.

I have spent over 2000 dollars getting my 97 chevy venture fixed and still more and more problems. It seems that the Dex-Cool ate away the water pump and the gaskets and ruined the block so now I have coolent in the engine block and I do not have the money to fix this automobile anymore so I now have to junk it because who would buy this piece of crap now! If I had known about the problems with dex-cool before I would have NEVER NEVER bought a Chevy. I had it flushed out and changed but the damage was already done and there was nothing that I could do.

Had a coolant leak in my 2003 Pontiac Grand Am. Coolant on driveway at home and where I park at work. Dropped it off at a Certified GM Service Center. They called back within an hour and said the intake gasket and the water pump had to be replaced. It will cost $1100.00. I googled water pumps and 2003 pontiac grand am and found a few web sites where it seems this Intake Gasket leak problem is wide spread. Many other owners posting comments of the exact problem and being charged anywhere from $800 to $2200.00 to fix the exact same problem. It has to do with the coolant that HAS to be used in the car and the plastic gasket installed in the 2003 Grand Ams. When the plastic gasket heats up then cools the coolant breaks down the gasket.

I have been reading complaints about Dex-Cool Anti Freeze with absolute horror! I own a 1999 Chevy Astro Van which I purchased used in 2005 and I, too, like so many people, have been using the recommended Dex-Cool and am wondering if that is the product that is causing a lot of symptoms I've been noticing that has started to happen to my van. I've noticed that my engine temperature gauge now is up slightly than what it used to be and I'm not sure if the engine hesitation is part of the oncoming problem I will be facing. I am also experiencing hard shift change in my transmission (though I'm not sure if that is one of the problems caused by Dex-Cool but who knows!) The coolant is like a slug sludge eating away all it comes into contact with causing problems (such as leaking oil, antifreeze, etc.) and by that problem happening causing one to spend more money repairing, replacing or hoping it'll go away. I am dependent on my only vehicle to get me too and from work so that I can have money to repair, replace, etc., my problems caused by something we all wouldn't have thought twice about. I really love my van and don't want to get rid of it...I'm going to flush out the radiator and hopefully the apparent future problems won't happen because I was wise to read what has happened to a lot of people.

Coolant flushes are frequent. Head gasket leaking. Coolant often topped off. Then I can smell coolant burning, but machanics find no leaks. Had coolant flushes often.

I have a 1996 Pontiac Sunfire with 135K miles on it. I am leaking coolant AGAIN, and I assume I'll need to replace the head gasket AGAIN. Oh, and guess what? This will be the FOURTH TIME. Perhaps I'll just get a different car.

I am now having problems with my coolant system, specifically the Air conditioner. I have a 2001 oldsmobile alero, which was declared a lemon after fighting with GM in or about 2003, Instead of replacing the vehicle, I was given about$4,000 after legal fees as a payoff. Now we are with the DEX cool problems, since I am just starting with the AC problem I don't know what my expensese will incurr... I am wondering, that since this car is a lemon, would I still be eligible for the class action suit in regards to Dex Cool.. The car was declared a lemon due to body misalignments. Oh the list is long of replaced things to much to mention here... But, I will say I have not had any mechanical problems, YET, they are just beginning ( air conditioning) with possibily other things contributing to it's malfunction. The car has 31,000 miles and has always been dealer serviced which does included the warning light for the cooling system coming on, but at the time I was having a oil change and didn't ask what was done in reference to it, the light was off when the car was returned and I was giving a bil, the car was under warranty at that time, it has since ran out...This GM car has been nothing but a headache. How can I get added to class action suit if I run into problems, my next car will be a Toyota..

I have had my car for 10 years, '97 Chevy Malibu. Throughout the years I've had my car I've had problems with the coolant, either leaking or other problems. Now, I was at the John L. Sullivan Chevrolet dealership to get my car fixed again. In March, I originally wanted my gear shift to be fixed then they told me that my Intake was leaking, they resealed intaker and rechecked it $1577.37. A month later my coolant light comes on. they verified low coolant in the reservoir, traced to leaking water pump. They replaced the water pump and topped off with coolant, $367.51. Two months later, my coolant light again turns on,went back John L. Sullivan. They can't get coolant light to come on, but they said is loosing pressure and don't know why. They still have my car as of today 06/20/07. In between there I've had to take my car to Midas and had my right front brake rotot replaced, resurface left front brake rotor, two front brake calipers replaced, clean and adjust rear brakes, two rear wheel cylinders replaced. They also said I needed my front motor mount and Transmission mount replaced. I have yet to do that. $978.51. Since March of 2007 I have spent $2923.39 to fix my car, not including what taking place at John L. Sullivan now.

The buick century 2001 with 55000 miles has a leaky head gasket. This is not due to hard driving. Repair will be more than $2000. I don't want an American car again.

took my 2000 Blazer in to have my Truck serviced for the dexcool problem, 4th dealer to look at it. I have already spent over $2500 on it to have dealers say it will happen again. Anyway Leson mechanic tried to tell me the lower intake gasget went bad causing oil to get into the coolant. I told him replace the radiator, hoses and thermostat, bypass the heater core if it can't be flushed. He looked at me like I was crazy and claims he nwvwr heard of the Dex Coll problem. Yea Right!

Started losing coolant..so topped it up. Then it was all over the garage floor. Went to mechanic who charged me $100 to say..It's the head gasket..repair will cost $2600. Took car to another mechanic who replaced the timing gasket..and all seemed ok. Then leak started again a few weeks later..water pump replaced $260...ok for another month now constant overheating. Talked at length to Active Green & Ross people who said they can flush the rad and heatercore.. They said any other coolant deteriortaes FASTER than Dexcool and NO mechanic will go against the GM demand that Dexcool be used as it is designed for use with their engines. Rea dthe post about someone getting a mechanic wizrd to do some copper wiring adds and using Green coolant but NO mechanic I have talked to will take that chance. All they suggest is get more frequent coolant flushes. GM is cretaing more repair business for themselves by NOT fixing this problem..guess they have to compete somehow.. Trouble is..its us POOR folks who acnt afford better cars who are stuck with this FLAW...NEVER again GM!!!

I have a 2002 Oldsmobile Alero I bought brand new in 02, at 28,000 miles I had the lower intake manifold gaskets replaced under warranty for leaking casued by Dex-cool engine coolant. My car is a show car that is stored every winter and now 2007 with 60,000 miles on the odometer the lower intake manifold gasket is leaking again! Dealerships want 600 dollars and up to replace...with all these problems, why must GM and Dex-cool disregard this problem??

I have always purchased buick products, however I how now decieded not to puchase ANY BUICK PRODUCTS AFTER TWO DECADES OF BUICKS. TOO BAD!!! WHAT A SHAME. I LOVE MY BMW.

I Have A Pontiac Grand Am Gt 1999 with 85000 miles. I bought it with 45000 miles and ever since i bought it, I have been having problems with it. I took it to one mechanic and they could not figure out what it was, and then to another, and then to another,etc. Then finally I took it to a good mechanic who specializes in GM engines 3.2 liters and 3.4 liters. He said he gets about 2 cars a week with the same problem.

I just had to have the water pump and seals, intake manifold gasket and seals, thermostat, and radiator cap replaced. Also there was the oil changing and cooling system flushing related to this problem. I am horrified to find out that this will almost definitely happen again very soon and it is caused by this Dex -cool crap and that GM knows about it.

I Have a 1999 Pontiac Grand Am Gt with about 86,000 miles on it and currently is getting another new head gasket. I have had 2 intake manifold gaskets put in and this is my second head gasket. $3000 later (for both) they tell me they cannot guarentee it won't happen again. GM and Dex-Cool are responsible and need to compensate or correct this probelm. Being a single mother with 2 children. I can't be spending this rediculous amount of money over and over again just because of their mistake.

My horror story about dex-coolant starts like this. I go to get a normal oil change at 75,000 miles for a 2000 Buick Century and the technician comes in and shows me my radiator cap and oil cap with this brown sludge on it and explains that the manifold gasket is bad and needs replaced. $900 dollars later, I have my car back to have the same thing happen six months later. They do a radiator flush to make sure that is not the problem. Six months even later and the gasket needs to be replaced yet again. Well, that fix lasts for another four months and the sludge is back. I started doing some research on the internet and find out it is the coolant that is causing all the problems. It is just sad that General Motors cannot step up and admit that there is a problem and tell people to stop using the coolant.

This being the first major problem, I was surprised when she started overheating, took it to my dad, checked levels and such and sent me off, no obvious leaks yet. Weeks passed and now i had coolant as my passenger all the time just to get a few miles I'd have to fill it up everyday, had everyone handy i know look. no one could figure this leak out. now if I drive more then 10 minutes i'm overheated. I put it on the local market, for cheap,for a mechanic, when a honest fellow told me my car was worthless, and directed me to this website. He explained that the dexcool was eating away at the plastic in GM's radiator.

Yet another Dexcool problem. My 1999 Catera started giving me problems right after I bought it with only 51k miles. After about $3000 worth of work, I still need more..All thanks to Dexcool..meanwhile, I am being told to make sure that I ONLY use Dexcool.

I am in the process of shopping for a new car on a tight budget because of the failing coolant system in my 1996 Chevy Lumina with only 80K miles. Why do I have to you ask? Two words: DEX COOL. Back in April 2005 I had to have the intake manifold gaskets as well as my water pump repaired for a total of about $800. A year later, I had to have my radiator cap replaced because it was stripped. Those repairs were at 70K and 75K miles, respectively. Now, 2 years later I notice a coolant leak under my car and it is my radiator leaking. My mechanic said I have a slowly worsening leak in my intake manifold gasket again, too, due to the Dex Cool coolant. Pluse I haven't had air conditioning in my car for 2 summers now! I had a 1993 Lumina that ran like a dream for 110K miles until I sold it right before inheriting this piece of junk! I will never buy another GM product again! GM should be ashamed of themselves for all the problems their coolant has caused and deserve all the financial problems they have because of their inability to service their customers and man up to the problem!

I purchased a 2000 Grand Am GT in June of 2004 from a used car dealer. The car had around 94,000 miles on it. The third week I had the car, the transmission started acting funny. I took it back to the dealer and told them about it and that they needed to fix it since I had the car less than 30 days and had driven less than 1,000 miles (per the typical lemon law/warranty offered by the dealer). They drove it and told me nothing was wrong with it. The 31st day I had the car, the transmission would not stay in a gear, it kept switching back and forth from 2nd to 3rd gear. I took it home and parked it. I called the dealer and insisted that they come and get it and fix it since i had made them aware of the problem before my limited warranty expired.

I have a 2003 Chevy Trail Blazer LTZ with 65000 miles. Yesterday I heard a noise come from my truck (sounded like a belt rubbing). It lasted a few minutes then went away. Yesterday evening it started again so I took it directly to to the service center. My water pump was moving so they told me I could not drive my truck. I know all of the guys there so they take very good care of me.

We have a 99 GrandAM SE that has had a continual overheating and leaking issue. We have spent a lot of money over the years trying to deal with it. We bought the car used from a GM dealership in 2004. We have spent $1100 in the last few weeks trying to get it repaired.

On my 2001 Chevy Malibu I had to have my lower intake manifold gasket, costing me over $700.00 and being without a car for two days. My car only has 87,000 miles on it and the lower intake manifold gasket should not have had to been replaced, if it was made properly with the proper coolant.

My check engine light kept coming on at approximately 50,000 miles. I took it to the Oldsmobile dealer and had a diagnostic check done to my car, at which time I was notified that my manifold gasket was leaking and needed to be replaced. Instead of paying $900.00 to get it replaced there, I took it to a trusted friend of the family who has his own shop and he did the work for $300.00 (and I bought the parts needed). My car now has 65,640 miles on it, and I took it to another mechanic and was informed that not only was my manifold gasket leaking, AGAIN, but that I also had coolant leaking into my oil and oil leaking into my coolant, all because of the new and improved antifreeze called Dexcool that damages the plastic seals throughout the engine! This car is barely 4-years old and has this many problems with it already???

I did not know what was going on.Now that i hear about this I am pretty sure that that is why I am having the same thing happen to me. I will have to replace my intake manifold. both of them.which is a bunch of bull.

The use of Dex-cool in gm cars. It ate my lower intake manifold gasket and had to be replaced.

While driving my 1999 Chevy Blazer just stopped running (stalled). I pulled over and tried to start the engine, it wouldn't turn over. I had a full tank of gas and the radio worked, so I was stumped. I called for tow and waited to hear from the machanic. When he called i was shocked to learn that I had what he described as a blocked engine due to an internal anti-freeze leak. He sais the engine was shot and that I needed a new engine. My vehicle has 102K miles (breakin mileage these days)and I maintain it very well. I was planning to drive it for another 100K miles. Of course the blue book value on my vehicle is only slightly more than the $3400.00 estimate to repair, so now I am basically forced to purchase another vehicle. I started researching the internet for similar problems and found your web-site. I too have only used DEX Cool antifreeze and can't beleive that GM is allowed to get away with this.

My 2001 Malibu, 35000 miles needs a intake manifold gasket replacement, $1400 repair. In addition, my 2001 Olds Aurora, 52000 miles also has leaking gaskets estimated repair is $800. GM should be responsible for these repairs since they are all Dex Cool related.

My Chevy Astro Van has 69,000 miles on it and I've replaced the radiator and water pump. Now DEXCOOL coolant is leaking everywhere. I couldn't keep the coolant reservoir full so I put the van on jackstands to look underneath. Turns out I have two blown head gaskets, blown intake gasket, leaking water pump (agian) and leaking heater control valve. My mechanic says he sees this all the time. Thats no help to me as I'm out $1500 now. GM says they will do nothing. Stay away from GM!!!

Dexcool took out my intake manifold gasket. $800 later I found out about this GM Dexcool Issue from the mechanic that repaired my GMC SAVANA. He said he repairs quite a few of these vehicles because in his experience the Dexcool attacks any seals or gaskets it is in contact with.

I have had to replace once intake manifold gasket at about 70,000 miles with the care only being about 4 years old. Now about 3 years later the same problem has occurred again at about 127,000 miles. I noticed that the anti-reservoir cap is covered with a brown sludge. The one hose I disconnected is gunked with a sand like sludge. I am just now finding out there are many problems similar to mine with cars that have dex-cool in their systems.

The intake manifold gasket failed in my 2001 Pontiac Grand Am after only 50,154 miles. The mechanic attributes the problem to Dexcool coolant. The coolant had a sluggishy film to it after only 20,000 miles and still does even though it has been flushed out and replaced several times.

I purchased a 2003 Chevy Monte Carlo from this dealership and the car had 48,101 miles on it. The car now has 68,206 miles on it and I was doing a brief look over of the car and noticed the resivoir was a nasty color, so I opened the radiator car and thats when I saw the nasty brown rusty sludge caked all over the radiator. The car is running Dex Cool Coolant in it.

I just had my intake manifold gasket replaced on my 1998 Chevy Venture at 116,000 miles. I learned the gasket wore down not because of wear but because of the dex coolant. I had the Exhaust manifold gasket replaced around 75,000, but I was not aware of the dex coolant issue at that time. Both repairs came to a total of around 1700 dollars.

My 2000 Oldsmobile Alero required a replacment of the intake gasket due to a leak and loss of coolant. I was told by my mechanic that this is a known problem with GM and would require a new intake gasket. I have about 70,000 miles on it. I did a search to find that GM knew about the issue with the gasket for years before the purchase of my vehicle but the continued to manufacture vehicles using the same defective gasket. GM also was negligent in notifying GM owners of this issue as this is not a basic service part and should last the lifetime of the vehicle. GM should of initiated a recall for affected vehicles. In reading up on this it seems that the DEXCOOL Antifreeze is the cause of the gasket failure as it is stated that this type of coolant breaks down the life of the gaskets it comes in contact with. Yet my 2000 manual and label on the antifreeze cap states use DEXCOOL only. Shouldn't this of been changed with a recomendation to use a different type of coolant? GM ignored their customers in this case. The cost of the repair ran me about $670.00.

Ihave just been informed tha my 2003 Pontiac Grand Am needs the intake manifold gasket,valve covers,dist o-ring, and thermostat to be replaced after only 52,000 miles. From what I have read in reports there seems to be a problem with the DEX-COOL coolant recommended by GM that is causing this to happen in a great deal of many cars. I feel GM should be responsible for any damages done to their vehicles because of this coolant.

I have an 1996 chevy cavalier with 80,000 miles. The head gasket was replaced at around 50,000 miles and I think it needs replaced again. Also less than two years ago we had to put a new transmission in and within the last 6 mos the power steering fluid was leaking, we had to replace the fuel pump and the water pump. Also the air conditioning no longer works and the heat only works on high and if I sit at a traffic light too long it occasionally stalls and the check engine light is always on. As you can tell by the low miles I do not drive this car alot. I will never buy a GM product again. The repairs to this car have cost me far more than the car is worth. I have two small children and am afraid to drive very far for fear it will break down. My husband and I take very good care of our cars but with this one it doesn't seem to make a difference.

Dex-Cool ruined intake manifold and gasket and is doing it again

Had to replace water pump, radiator, heater-core, and antifreeze in oil.

I just had my engine flushed after purchase of a 1998 park ave with 94000 miles...thru this process i became aware of the dex-cool complaints and the replacements of so many parts...yesterday the engine started with a clacking noise and hesitation..it calmed down on my way home but now i wonder if it is safe to drive..i checked the just replaced dex-cool coolant and the radiator fluid is like a liquid brown mix as described by others..i now wonder if the dealer knew the problem was coming and dropped the price accordingly with no warning of future repairs and problems that might be associated with the brown radiator fluid.

I recently purchased a used 2004 Chevy BlaZeR2 from a local dealer. While surfing the Internet I came across the whole Dex-Cool issue. I got the 4.3L V-6 vortec with 74,000 miles. It's ashame GM discontinued the Zr2 option along with the BlaZeR2 since the vehicle does deliver as promised right out of the box. Hopefully the highest paid at GM will take responsibility for the failure of Dex-Cool.

In Dec. 2001 I bought a 1999 Pontiac Grand Prix (3.1L). Well, it had Dex-Cool in it, and I recently had to spend $815 to repair the lower intake gasket. Two days later (today, 4/1) my Service Engine Soon light came on. I read from others' experiences that many people still experienced significant engine damage even after fixing the problem. Now I see that this is a major problem with GM vehicles during the past several years. What is being done to help the consumers who are basically being robbed through GM/Dex-Cool negligence? Also, how do I know that they didn't fill my car back up with Dex-Cool? If there is a class-action lawsuit, whom do I contact?

Dex-Cool GM Prestone used in 1997 Buick LeSabre per owner's manual.

I own a 1999 Oldsmobile Cutlass GLS that I purchased from my father in 2002. Since then I have had multiple problems with my car overheating and leaking antifreeze, due to a extended life engine coolant dexcool failure. This problem has caused me to replace the intake gasket twice, at a cost of $2000. Now I have 126,000 miles on my car and the problem is back. GM needs to be held accountable for this widespread problem.

We've already had to have the intake gasket replaced on our 1999 Chevy Lumina and just this morning while getting the car inspected we found out it's leaking again. The mechanic mentioned Dex-cool and the class action lawsuit against GM, which we were already aware of.

I have a 98 cavalier I bought new. @ 110k miles it started leaking antifreeze. GREAT news after reading all these others. I'll ask my garage if I should take the Dex-Cool out at this point & use regular coolant. I don't YET have any other probs [that I know of].

I own a 1998 Oldsmobile model-88. For the second time since I've had this car,I am faced with replacing the intake manifold because of a part made of plastic that fails. The first time it cost me $857.67. GM has for years had this problem with many other of their cars. There should have been a recall to immediately correct the problem. No wonder GM is in trouble selling cars. Now I hve to decide whether or not to fix the problem myself and spend more money on something that may occur again in the future. General Motors needs to be held to account for this problem, not the faithful customers.

1998 Malibu, Dex-cool problems. Eating my car completely up. We just got it paid for 1 week ago and now its at the mechanics with an intake Manifold gasket leak, just replaced the waterpump in June, serpintine belt, hoses, etc. Radiator is in horrible shape. That will the next to fix. After reading all the complaints about this...wondering if its worth it. I won't buy a GM again.

We have just discovered the issue with Dex-Cool in GM vehicles. We have a 1999 Suburban that we purchased used in 2005. We did not even know it had Dex-Cool in it until the last month when it began leaking. Now we are facing over $1200 in repairs because of Dex Cool corroding the cooling system. Has there been any progress in the formation of the Class Action Suit aqainst GM? We live in Kansas and could not find any information on a case being filed in Kansas. Thank you for your help.

I purchased a 1998 Buick LeSabre with a 3.8 L engine thinking they were bullet-proof. Little did I know!. At 100,000+ kms coolant got into the engine. I was unaware a large number of GM engines were suffering from the same thing. I got the engine fixed (almost $2000) and about two months later the engine seized up.

Yet another case of Dex-Cool eating apart portions of an engine. I own a 1999 Chevy Silverado with a 4.3L V6 engine. After purchasing it used in 2005, I noticed, 6 months later, the Low Coolant light. I thought nothing of it, topped off the tank, and went on my way. This started happening more & more frequently. I then began to notice puddles of coolant beneath my truck. I took it to the local dealer for a diagnosis, and learned that the water pump and one of the intake manifold gaskets were both leaking.

At around 70,000 miles, the intake manifold gasket in my 1999 Olds Cutlass (3.1 Litre) failed and had to be replaced at a cost of $700. Now, three years later, at around 123K miles, the car has developed another antifreeze leak at the intake manifold gasket. This is ridiculous. Has anyone tried to hold GM responsible?

I bought a new 2003 cavalier in August 2003. My cavalier has an oil leak, it looks like the lower manifold gasket is leaking and there is coolant in the oil, i can see it on the dipstick. There is also some kind of sludge on the dipstick. My car has 87k miles on it, GM is not offering to pay any of the repairs.I am aware there is a pending class action suit about dexcool in GM vehicles. Just wondering if there is any other help out there to pay for this mess.

I have a 2002 Buick Century purchased in July 2002. The low engine coolant light came on. I added coolant. Took the car in for routine oil check & coolant was found leakinginto the ooil, and a leak around the intake manifold.There never was any outside leak giving me a clue there was a problem. Dealer replaced intake manifold gaskets, reesealed oil pumpdrive and replaced bypass tube on 3-20-07. Repair bill was $675 and milleage on car is 59,699. It won't be 5 yr. old til July 07. Inquired at GM about recalls on this problem and CS rep. denied there was any problem. Engine damage has most likely occurred. I have a work order with the exact work done, cost, etc.

We purchased a new 2001 Oldsmobile Alero on February 23, 2002. Because Oldsmobile was being discontinued as a GM auto line, we were given a 60 month / 60,000 mile warranty. On March 15, 2007, we took our Alero in for service since the check engine light was on.

My coolant was completely gone three weeks ago, so I refilled with more, and noticed that there was a slow leak, I called my brother in kansas, and he mentioned too me that his 2001 pontiac grand pre was in the shop getting a new engine ($3500) he said that it was due to a lower intake valve gasket failure, and everything that he was describing to me was exactly what was going on with my '03 Malibu. I took it to a mechanic right away where he told me coolant has leaked into my oil due to failure of my lower intake valve gasket, we also have a 97 gm pickup are we to expect the same from this vehicle?

I have a 2002 Pontiac Grand Am GT, I have done regular upkeep as suggested by manufacturer (oil changes, tune-ups, etc). I have had an ongoing problem with my thermostat(changed it 3 times in a year), cooling sensor, heads (replaced both because of bad thermostat that blew engine heads), oh and the Dex-Cool continues to destroy whats left of my cooling system. I have to take it in tomorrow to change the cooling sensor again so hopefully what little money i have left will still be in my pocket when i leave the dealership. Thank You GM!

My 1999 Monte Carlo needs another head gasket. I had to have this done at 37,000 miles and now I have 73,000 and need another one. I don't think this is right. I paid a lot of money for this car and something needs to be done to compensate for this.

Had to replace lower intake gasket, leaking coolant and install green antifreeze etc. on my 2000 Impala, cost $858.47. This same repair was also done in February 2003 when the vehicle was still under warranty. Would like to seek reimbursement for an issue that should have been addressed by GM. I have all work orders/receipts.

I bought a 1999 chevrolet cavalier in 2004 and i had it for one week and had to replace the alternator. Then I had it for about four more months with about 89,000 miles on it and it started to over heat and leak antifreeze {dex-coolant}. I would keep putting antifreeze in it and then it eventually over heated to were it cracked the heads.It sat in my yard for about 1 almost two years and then I bought a motor and a bunch more parts for it like all the filters you need, and a new water pump, and a thermostat, and a new clutch.We have spent about $5,000 total on this car.

I have a 2003 Grand Am GT and the intake manifold was leaking coolant from my car and making it overheat. I called Pontiac consumer affairs and the dealership acknowledged that this is an ongoing issue with this vehicle. The cost to repair is $750.00. If this is an ongoing issue, why doesn't GM step up to the plate and do something about it. I've only had my car for a little over two years with 78,000 miles on it and rely on my car to get me back and forth to work 50 miles a day. I really don't feel comfortable with my engine being opened up, to me this is not high mileage am I wrong?? I called Pontiac and the rep didn't mention any acknowledgement of this problem. Is this the beginning of the end for my car? I will be watching the behavior of my car very closely and one more major mishap and it's bye bye Pontiac, hello Toyota.

I own a Pontiac Grand Am SE year 2000. I've had the car for a little over a year and ever since I've gotten it, I've had problems with the coolant leaking. My car uses Dex-Cool coolant. Recently, we took my car to a mechanic and ended up paying $1,500 to get a new head gasket put in. I think that GM should compensate those who have problems with their vehicles because of the Dex-Cool coolant. If they are selling vehicles that need repairing after only a few thousand miles because of faulty coolant, they should pay for the damages.

We own a 2001 Buick Century, which has really been a good car until we hit almost 100k miles. That's when our coolant nightmare began. When the 'low coolant' light came on,we had the car towed to an independant service garage, knowing we'd 'need a new car', if we took it to the GM dealer. There was no reserve coolant & the radiator was empty. Under the radiator cap, creamy sludge had collected.

I have a 02 Pontiac Grand Prix with the Dexcool problems. About a year and a half or so ago we were going to take a short trip and my low coolant light came on the night before we were leaving so my husband went to check my coolant and when he took the radiator cap off and it was all gunked up with this thick brown slug and than he stuck his finger in the pipe and it was covered with this gunk so I took it down to the local oil change station and had them flush the ratiator.

My car (2002 Chevrolet Impala 3.4 liter) has been leaking antifreeze. It started out small but has gotton progressivly worse. I was told it was leaking due to a worn intake manifold gasket which would cost at least $600 to repair. Due to my tight budget, I could not authorize the repairs at that time.

My complaint is really not with the Cadillac Assistance group, it is with the Cadilac manufacturer. My issue is no one should be selling the Cadillac Catera anymore as a used vehicle.

I purchased a 2003 Grand Am (new).It came from the factory with Dex cool coolant. Recently it started losing coolant ,and I noticed emulsified oil in valve covers during oil change. The service manager at the dealer where purchased said this is normal in the winter. (???)I've only owned two new vehicles in my life, so I'm pretty capable when it comes to working on cars...

We purchased a 1997 Pontiac Bonneville in 2001 that was like new with 10k miles on it. We searched for one since we enjoyed our 1994 Bonneville for 150,000 great comfortable miles. I convinced my brother to purchase one since it was a great model vehicle. He bought a 1998 in 2001 also. He blew a head gasket twice, burning his motor up the second time at around 60,000 miles.

I own a 1998 Oldsmobile Achieva and have many problems. The Inake Manifold blew and leaked engine coolant into my oil and blew my engine. A new engine costed approximate $1700.00.

My 2001 Pontiac Montana has recently started overheating, the heater works when it wants to, and the air conditioner no longer works. Last week the van started to overheat. We filled it with the Dexcool antifreeze, like the book said to do and a week later it was empty again. I have not brought it to a mechanic yet because I don't have the money to bring it in. I think it sucks that people want you to buy American made cars, but then they don't stand behind the people who spend their hard earned money on it. The lady who I bought the vehicle from took very good care of and I have all of her records. She got the air conditioner repaired 3 times. I'm sure tomorrow when I look more into the work she had done on it I will see that it is alot of what these other people are saying!

I have owned my 2001 Chevy Suburban since new. I have always maintained the vehicle to GM's mileage standards. Recently I have developed a coolant leak and had the vehicles coolant system pressure tested. The conclusion of this test is that all my water pump gaskets have been deteriorated by Dex-Cool and are now leaking. I understand that is becoming a regular problem in GM cars that use Dex-Cool.

1995 lumina car with 3.1l engine has twice needed to replace cylinder head gasket

I have a 2002 Chevy Malibu with about 80,000 miles and it just developed a coolant leak from the manifold gasket that will cost me $1200.00 to fix. I was surprised when my mechanic told me that this is a common problem with the Malibu's. Then I went to the ConsumerAffairs Web site and reviewed many similar complaints like my own. Shame on General Motors for not fixing a known problem. Now we know why Toyata has overtaken GM as the #1 carmaker.

My family has bought many GM cars and trucks over many years and we never had a problem before now. But now this has tianted my view of the whole company. I have spent almost $1000.00 on my gasket repair. The machanic that fix my car is the one that told me about the class action lawsuit that they are trying to get together. I hope someone will read this and get the help they need also.

On March 1, 2007 My wife was returning from work driving her 2002 Pontiac Bonneville and it started to overheat right down the street from our home. When she arrived I started to look at the car and found that the cooling overflow tank and the radiator were empty. Deciding that this was out of my league I took the car to the dealer and had it diagnosed.

I had a mechanic look at my 1996 blazer and sure as H*** I was told the Dexcool, is leaking thru my intake manifold gasket and it must be repalced at aroung the cost of 700-900. OK GM, I guess time for a new car but not GM for sure. You sure could take responsibility of this and make it a recall so people like me, single Mom, low income, can at least drive to a job. Thanks for nothing GM!

I have been a loyal GM buyer all my life. Was brought up on them and have bought one as recently as April of last year. I currently have seven GM vehicles in my fleet. I have had a problem with the cooling system on my last two personal trucks. The first was a 97 1500 pickup. This vehicle had dex-cool as the coolant system. I had a consistent problem with the coolant bottle being low, and would fill it up as it would get lower. I had to have the water pump replaced on it and then shortly there was still a problem with the bottle being low. I was then told that I needed to replace the gaskets in the engine. I have since sold that vehicle and bought an 02 2500HD. This vehicle also has dex-cool. I had a similar problem with the low coolant. Shortly there after the heater core went out and cost me over $1,400 to replace. Not 6 months later it happened again and cost me another $1,400. I can only assume this is because of the Dex cool. If this is what I have to look forward to I may be reconsidering the purchase of GM vehicles if they use Dex-cool

My 1999 Chevrolet Venture van suddenly began to run hot on my way to work. I immediately pulled over and allowed the engine to cool down. I attempted to get my vehicle to a service station, but just after a short distance, the dash light indicated that the temperature was quickly beginning to rise.