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1999 Ford F-350 Super Duty Lariat 7.3L Poor Idle Quality, Misfire
Posted to Ford Driveability on 1/15/2004 8 Replies

Customer said he got water in his fuel. He drained the tank and replaced fuel filter. Vehicle idles rough and misses at 40 mph. Found no codes. Ran self-test and had no codes. Ran cylinder contribution test and #1 and #5 are not contributing. Ran buzz test and...

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car Vehicle Data

1999 Ford F-350 Super Duty Lariat

VIN 1FTWX32F6X
Engine7.3 L / 8 cyl / DIESEL
Trans4-speed Automatic (Electronic)
DeliveryFI / Direct injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire
OccursAlways, Under Load
Message Closed w/FIX

car Vehicle Data

1999 Ford F-350 Super Duty Lariat

VIN 1FTWX32F6X
Engine7.3 L / 8 cyl / DIESEL
Trans4-speed Automatic (Electronic)
DeliveryFI / Direct injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire
OccursAlways, Under Load