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1998 Chevrolet K3500 Cheyenne 7.4L Poor Idle Quality, Misfire
Posted to GM Driveability on 5/7/2004 6 Replies

Vehicle has a rough idle, feels worse cold but still there warm. Misfires count up on cylinders 5 & 6 but doesn't set codes. Cylinder time balance at idle on cylinder 6 is -2%, cylinder 5 +2%, rest of cylinders around 0%,all cylinders near 0% above 1200 rpms. ...

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  Related Documents & Media  1998 Chevrolet K3500 Cheyenne

 
Message Closed w/Summary

car Vehicle Data

1998 Chevrolet K3500 Cheyenne

VIN 1GCHK33J5W
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire
OccursIdle
Misc.Crew Cab Long Box
Message Closed w/Summary

car Vehicle Data

1998 Chevrolet K3500 Cheyenne

VIN 1GCHK33J5W
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire
OccursIdle
Misc.Crew Cab Long Box