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2004 Ford F-150 FX4 5.4L Lack of Power
Posted to Ford Driveability on 6/24/2009 8 Replies

This truck has no power under acceleration. Feels just like a plugged exhaust. No codes. Had .75 psi backpressure so had the front pipe cat assembly replaced but still the same results. Have swapped MAF with another vehicle no change,doesn't need a tuneup, fue...

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  Related Documents & Media  2004 Ford F-150 FX4

 
Message Closed w/FIX

car Vehicle Data

2004 Ford F-150 FX4

VIN 1FTPX04584
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsLack of Power
OccursAlways
Message Closed w/FIX

car Vehicle Data

2004 Ford F-150 FX4

VIN 1FTPX04584
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsLack of Power
OccursAlways