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2004 Chevrolet Express 3500 6.0L Misfire
Posted to GM Driveability on 6/10/2009 10 Replies

Vehicle has a misfire on cylinder #2 & #6 at idle only. It trips the code mostly when cold after running for 2-3 minutes. Eventually the MIL light will come on. We have replaced plugs, wires, swapped coils with different cylinders, flushed injectors twice, ins...

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  Related Documents & Media  2004 Chevrolet Express 3500

 
Message Closed w/Summary

car Vehicle Data

2004 Chevrolet Express 3500

VIN 1GBHG31U74
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / Returnless multi port
EmissionsOBD-II Compliant
SymptomsMisfire
OccursIdle
Misc.Cube Van

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/Summary

car Vehicle Data

2004 Chevrolet Express 3500

VIN 1GBHG31U74
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / Returnless multi port
EmissionsOBD-II Compliant
SymptomsMisfire
OccursIdle
Misc.Cube Van

Trouble Codes

P0300Multiple Misfire Detected