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1998 Chevrolet C3500 Cheyenne 7.4L Misfire
Posted to GM Driveability on 7/30/2009 13 Replies

This thing has a missfire on cylinders 3,5,and6. It does not miss on all of them all of the time. It misses most on 6 at idle and more on 3 at higher rpms. i have swapped plugs, wires, and injectors around. It always stays on those 3 cylinders. I have also rep...

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car Vehicle Data

1998 Chevrolet C3500 Cheyenne

VIN 1GBKC34J6W
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / port fuel injection
EmissionsOBD-II Compliant
SymptomsMisfire
OccursAlways, Under Load
Misc.Upfitted With Bucket Bed
Message Closed w/FIX

car Vehicle Data

1998 Chevrolet C3500 Cheyenne

VIN 1GBKC34J6W
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / port fuel injection
EmissionsOBD-II Compliant
SymptomsMisfire
OccursAlways, Under Load
Misc.Upfitted With Bucket Bed