
2004 Chevrolet Silverado 2500 HD 6.0L Misfire
Hi guys. I have a 2004 Chevy Silverado 2500HD. Has misfires on all cylinders. Customer replaced plugs and wires with new sets, hoping to cure the problem. We have done a crank relearn, which did not help. We replaced the crankshaft sensor, still no change. We ...
FIX posted 5/12/2011
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Message Closed w/Summary
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VIN | 1GCHK29U24 |
Engine | 6.0 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Misfire |
Occurs | Cold, Hot, on Decel, Idle |
Trouble Codes
P0300 | Multiple Misfire Detected |
P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
P0446 | EVAP Vent Control System Performance |
Message Closed w/Summary
Vehicle Data
2004 Chevrolet Silverado 2500 HD
VIN | 1GCHK29U24 |
Engine | 6.0 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Misfire |
Occurs | Cold, Hot, on Decel, Idle |
Trouble Codes
P0300 | Multiple Misfire Detected |
P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
P0446 | EVAP Vent Control System Performance |