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1999 Chevrolet Express 1500 5.7L Misfire
Posted to GM Driveability on 6/26/2009 13 Replies

This van seems to misfire intermittently when the conditions are damp. It appears that the wiring repair I have preformed is functioning properly. Has anyone else seen wiring problems on these vans around the pcm area? I have inspected the pcm's wiring connect...

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  Related Documents & Media  1999 Chevrolet Express 1500

 
Message Closed w/Summary

car Vehicle Data

1999 Chevrolet Express 1500

VIN 1GBFG15RXX
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / CSFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursIntermittently, Damp

Trouble Codes

P0307Cylinder 7 Misfire Detected
Message Closed w/Summary

car Vehicle Data

1999 Chevrolet Express 1500

VIN 1GBFG15RXX
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / CSFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursIntermittently, Damp

Trouble Codes

P0307Cylinder 7 Misfire Detected