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1990 Chevrolet C1500 Cheyenne 4.3L Misfire
Posted to GM Driveability on 8/1/2001 6 Replies

the truck came in customer complaint of backfiring and no power on accelleration i scoped secondary ingnition and all looked good stong coil ossilations/fuel pressure 15 psi and incress with snap acceleration a few pounds varifing that the fp regulatior is wor...

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car Vehicle Data

1990 Chevrolet C1500 Cheyenne

VIN 2GCEC19Z2H
Engine4.3 L / 6 cyl / GAS
Trans5-speed Standard
DeliveryFI / TBI
EmissionsOBD1
SymptomsMisfire
OccursOn Accel
Message Closed

car Vehicle Data

1990 Chevrolet C1500 Cheyenne

VIN 2GCEC19Z2H
Engine4.3 L / 6 cyl / GAS
Trans5-speed Standard
DeliveryFI / TBI
EmissionsOBD1
SymptomsMisfire
OccursOn Accel