2009 Chevrolet Express 2500 6.0L Poor Idle Quality, Misfire, MIL Lamp on
This problem occurs intermittentently at idle. Seems worse after it gets hot while driving and returns to idle at stops. Its missfiring no.1 cylinder bad when this happens. No.5 missfire counter is around 6 and no.7 missfire counts are around 7. When this happ...
FIX posted 11/15/2010
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Message Closed w/FIX
Vehicle Data2009 Chevrolet Express 2500
Trouble Codes
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Message Closed w/FIX
Vehicle Data
2009 Chevrolet Express 2500
VIN | 1GCGG25U84 |
Engine | 6.0 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection / RETURNLESS ON DEMAND DESIGN |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality, Misfire, MIL Lamp On |
Occurs | Hot, Idle, After a Hot Soak, Intermittently |
Trouble Codes
P0172 | Fuel System Too Rich (Bank 1) |
P0300 | Multiple Misfire Detected |