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2003 Chevrolet Silverado 3500 6.6L Misfire,
Posted to GM Driveability on 10/2/2018 12 Replies

Hello everyone, I am fairly new to diesels, especially duramax diesels. I have a duramax that came in with high pressure in the cooling system. Replaced the head gaskets, injector o-rings etc (As well as a cylinder head from piting from blown head gas...

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  Related Documents & Media  2003 Chevrolet Silverado 3500

 
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car Vehicle Data

2003 Chevrolet Silverado 3500

VIN 1GCJC33163
Engine6.6 L / 8 cyl / DIESEL
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMisfire,
OccursAlways

Trouble Codes

P0302Cylinder 2 Misfire Detected
P0304Cylinder 4 Misfire Detected
P0306Cylinder 6 Misfire Detected
P0308Cylinder 8 Misfire Detected
P0380Intake Air Heater Relay 1 Control Circuit Malfunction
Open Help Request

car Vehicle Data

2003 Chevrolet Silverado 3500

VIN 1GCJC33163
Engine6.6 L / 8 cyl / DIESEL
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMisfire,
OccursAlways

Trouble Codes

P0302Cylinder 2 Misfire Detected
P0304Cylinder 4 Misfire Detected
P0306Cylinder 6 Misfire Detected
P0308Cylinder 8 Misfire Detected
P0380Intake Air Heater Relay 1 Control Circuit Malfunction