Issues Power Stroke Fuel Injector TSB
According to the TSB, certain F-250, F-350, F-450 or F-550 models with 6.4-liter Power Stroke motors manufactured between April 3 to May 21, 2007 may have faulty fuel injectors in cylinders 1, 5 and 7 that need to be replaced with new units.
According to Ford spokesperson Wes Sherwood, the injectors were accidentally damaged during testing at the supplier's facilities, caused by human error setting up test equipment. The damaged injectors create a misfire condition that will cause the vehicle to run rough or hesitate, especially during acceleration.
About 3,000 engines have been impacted by the issue. The majority of those engines have either been corrected at the factory or are being corrected in dealer inventory. Approximately 250 engines are in customer hands and Ford has notified those owners of the TSB.
Mr. Sherwood says the fix requires a few hours to correct and that there is an ample supply of properly working injectors available to replace faulty units.