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Consumer Affairs

Chevrolet Silverado - Engine Noise

Consumer Complaints & Reviews

James of Natchitoches, LA on July 16, 2011
Satisfaction Rating: 1/5
2007 Chevy Silverado, purchased new. After a few months the security light began coming on while driving. Shortly after, the engine would not start properly.The vehicle would start and then stop after about 1 second. The only way to get it running was to wait 10 minutes and try again.It would restart after 10 minutes of some multiple of 10 minutes. usually, restart was accomplished within 30 min.

The longest time that it would not restart to date has been 3 hours.

The dealership said they had no idea what was going on and could only diagnose the problem when it was actually not starting. It was impossible to get it to them because it was a short term intemittant problem.

The problem has been more frequent lately, the vehicle now has 70,000 miles on it. The dealer wanted 125$ to just hook it up to his computer with, no gauarantee that any codes would show up. Investigating on line I have since discovered that the problem is caused by the GM passlock system. Dealer repairs are very expensive (1000$ plus).

Contacting GM via their website, and thru the dealer, they say they have no idea what the problem is and that my only option is to bring the vehicle to them and leave it while they investigate, all at my expense, since the vehicle is out of warranty. In reality, they know exactly what the problem is.

The problem is widespread, and very common. It appears to me that they have found a very profitable way to fleece their customers.

Stephen of Peabody, MASS. on Nov. 8, 2003

I purchased a new 2002 Chevrolet Silverado 2500 Heavy Duty 4x4 Pickup truck in May 2002. In August 2002 at approximately 5000 miles I noticed a loud rapping, knocking noise coming from my engine. I made an appointment with the dealer and they confirmed my worse suspicions.

My truck was diagnosed with piston slap. According to GM this is completely normal. Well, according to automotive industry experts this is definitely a problem for any vehicle. Gm keeps revising their bulletins to cover themselves. I spent lots of money for this truck and expected to have a quality vehicle. I know that over time from speaking with the dealerships service manager I will experience power loss, poorer fuel economy and higher emissions.

Why doesen't any goverment agency want to investigate this? GM will simply tell all of you that piston slap is normal. Why, you and I may ask? Because it will cost millions to recall their defective engines. I have asked mechanics at GM why do only some of my cylinder walls knock loudly while others do not? I never get an answer.

 
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