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1999 Ford F-250 Super Duty Lariat 5.4L Misfire, No MIL, no codes
Posted to Ford Driveability on 12/5/2011 18 Replies

PLEASE HELP! This truck came to me with an intermittent misfire under load. I scanned with my OTC Genisis, no codes found. I have road tested this vehicle and can make truck miss very bad, enough that the check engine light should flash I would think. I have t...

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car Vehicle Data

1999 Ford F-250 Super Duty Lariat

VIN 1FTNF21L7X
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMisfire, No MIL, No Codes
OccursUnder Load, Intermittently
Message Closed w/FIX

car Vehicle Data

1999 Ford F-250 Super Duty Lariat

VIN 1FTNF21L7X
Engine5.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMisfire, No MIL, No Codes
OccursUnder Load, Intermittently