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Timing Tensioner problems of the 2004 Ford F-150

Two problems related to timing tensioner have been reported for the 2004 Ford F-150.

car   Timing Tensioner problem 1
Failure Date: 06/01/2011

Tl- the contact owns a 2004 Ford f150. While driving approximately 25 mph the contact heard a knocking noise coming from the engine. The vehicle was taken to an independent mechanic and the dealer where the contact was informed the variable time cam phaser tensioner needed to be replaced. The manufacturer was contacted and a report was filed. The vehicle was not repaired. The approximate failure mileage was 115,428. Ds.

car   Timing Tensioner problem 2
Failure Date: 07/18/2008

Truck(83000 miles) was parked in driveway. Went and started and the truck began to sputter and shake and the check engine light came on. Truck would not accelerate and I took to dealer. Began to shake even more and lose power. Problem was timing chain tensioner failure which caused failure to engine. Engines needs replaced. Dealer explained that this can happen at any time and usually causes major engine damage and failure.