The Ford Motor Company is recalling more than 650,000 F-150 and Lincoln Mark LT pickup trucks because of a faulty power brake assist hose.

The Ford recall covers 2005 and 2006 F-150 and Mark LT trucks equipped with the 5.4-liter three-valve engine, according to the National Highway Traffic Safety Administration (NHTSA) Web site.

The brake hose may swell over time causing the hose to become detached from the intake manifold, NHTSA reported. As a result the agency warned, applying the brakes could require increased pressure on the brake pedal.

Several brake applications with power assist will be available before the vacuum reserve is depleted, according to the NHTSA report.

A Ford spokesman said there are reports of 11 minor accidents caused by the brake hose issue with no injuries.

More than 600,000 of the recalled trucks are in the U.S. and roughly 50,000 are in Canada. Another 1,500 pickups are in other countries.

Parts are currently not available to complete the required repairs the automaker said in a letter to all Ford Lincoln and Mercury dealers. Ford plans to begin notifying F-150 and Mark LT owners of the recall in early July.

Dealers will replace the hose at no charge to customers when the recall begins.

Owners may contact Ford at 1-800-392-3673 or NHTSA at 1-888-327-4236 (TTY 1-800-424-9153).