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1996 Chevrolet C1500 Cheyenne 4.3L Misfire, MIL Lamp on
Posted to GM Driveability on 4/1/2009 14 Replies

This misfire occurs only during "normal" [...] heavy acceleration and idling NO misfires,runs perfectly!With engine RPM below 2500rpm under load all cylinders randomly misfire,sometimes [...] timing was at -18*,after adj. now at -15*.During misfires Oxygen sen...

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  Related Documents & Media  1996 Chevrolet C1500 Cheyenne

 
Message Closed w/FIX

car Vehicle Data

1996 Chevrolet C1500 Cheyenne

VIN 1GCEC14W7T
Engine4.3 L / 6 cyl / GAS
Trans5-speed Standard
DeliveryFI / CPI
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursAlways, Under Load

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

1996 Chevrolet C1500 Cheyenne

VIN 1GCEC14W7T
Engine4.3 L / 6 cyl / GAS
Trans5-speed Standard
DeliveryFI / CPI
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursAlways, Under Load

Trouble Codes

P0300Multiple Misfire Detected