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1999 Ford F-550 Super Duty XL 7.3L Poor Idle Quality, Misfire
Posted to Ford Driveability on 6/10/2009 16 Replies

engine starts on 7 cylinders and runs rough untill temp gets up then runs alot better,scan for cylinder contribution and come up with #2 cylinder low, thinking maybe broken top compression ring -have not checked compression cold but sounds good when cranking c...

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car Vehicle Data

1999 Ford F-550 Super Duty XL

VIN 1FDAF57F3X
Engine7.3 L / 8 cyl / DIESEL
Trans6-speed Standard
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire
OccursCold
Message Closed w/FIX

car Vehicle Data

1999 Ford F-550 Super Duty XL

VIN 1FDAF57F3X
Engine7.3 L / 8 cyl / DIESEL
Trans6-speed Standard
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire
OccursCold