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2003 Ford F-150 XL 5.4L Misfire
Posted to Ford Driveability on 9/18/2007 6 Replies

here is one for you a supercharged 5.4 cuts out under high acceration with spark knock like it is running lean no codes present plugs an coils have been replaced mass air flow readings good fuel pressure and volume good injector pulse witdth fine fuel injector...

6 Replies Received (View Replies)

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car Vehicle Data

2003 Ford F-150 XL

VIN 1FTRWO7333
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursUnder Load
Message Closed

car Vehicle Data

2003 Ford F-150 XL

VIN 1FTRWO7333
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursUnder Load