Sunday, January 16, 2011

E-Series Engines Lack of Power

Ford SVE Bulletin Q-199

Models Affected: 2010 E-150, E-250, E-350, E-450 with gas engines.


Some 2010 E-Series vehicles equipped with 4.6L, 5.4L or 6.8L gas engine and built on or before 6/22/2010 may exhibit a lack of power on acceleration due to an engine air cleaner inlet
restriction at the upper air deflector on the radiator core support.


1. Open hood and remove the S-shaped air cleaner inlet tube from the upper air deflector using a twisting motion.

2. Inspect the air inlet opening in the upper air deflector for the flexible plastic/rubber flap that may be out of position and obstructing the air inlet opening (see illustrations found on page 2).

a. If the flap is obstructing the opening, reposition by directing it down in front of the A/C condenser.

b. If the flap is correctly positioned, this article does not apply. Refer to normal diagnostics in the Powertrain Controls/Emissions Diagnosis (PC/ED) Manual.

If you have any questions, contact the Ford Truck Body Builders Advisory Service:

E-Mail via website: (click "Contact Us")

Toll-free: (877) 840-4338

Contributor: WxToad

Return to FAQ Index