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1990 Chevrolet K1500 Cheyenne 4.3L Misfire,
Posted to GM Driveability on 5/26/2006 8 Replies

hello, i am showing a constant knock while watching data on a snap-on scanner. I tested the voltage signal going into the ECM from the ESC module and showed 9.04 volts, according to my specs the ESC should put out between 8-10 volts when there is no knock, mea...

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car Vehicle Data

1990 Chevrolet K1500 Cheyenne

VIN 1GCDK14ZOL
Engine4.3 L / 6 cyl / GAS
Trans3-speed Automatic
DeliveryFI / TBI
SymptomsMisfire,
OccursAlways
Message Closed

car Vehicle Data

1990 Chevrolet K1500 Cheyenne

VIN 1GCDK14ZOL
Engine4.3 L / 6 cyl / GAS
Trans3-speed Automatic
DeliveryFI / TBI
SymptomsMisfire,
OccursAlways