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1998 Chevrolet C1500 Cheyenne 5.0L Poor Idle Quality, Misfire
Posted to GM Driveability on 1/25/2012 12 Replies

Have a very strange one here, runs rough and misfires only cold, on cylinders 1, 2, and 3 only. Misfire counts on scanner got up to 50 - 60 per cycle. When first started cold does not miss right away. Has to run 30-45 sec. then starts running rough only cyl. 3...

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  Related Documents & Media  1998 Chevrolet C1500 Cheyenne

 
Message Closed w/FIX

car Vehicle Data

1998 Chevrolet C1500 Cheyenne

VIN 2GCEC19M2W
Engine5.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / sefi
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire
OccursCold

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

1998 Chevrolet C1500 Cheyenne

VIN 2GCEC19M2W
Engine5.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / sefi
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire
OccursCold

Trouble Codes

P0300Multiple Misfire Detected