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2011 GMC Sierra 3500 HD SLE 6.0L Poor Idle Quality, Cuts out, Stall, Misfire, MIL Lamp on
Vehicle runs rough and dies after 15 seconds while cold. Can warm it up and will run ok. ECT sensor appears to be reading correct. Replaced intake gaskets after found vacuum leak. Seemed like it got better but didnt. Have voltage drop tested coils, injecto...
FIX posted 9/9/2023
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Related Documents & Media | VIN | 1GT522CG8B |
| Engine | 6.0 L / 8 cyl / FLEX |
| Trans | 6-speed Automatic (Electronic) |
| Delivery | Fuel Injection / EFI |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Cuts Out, Stall, Misfire, MIL Lamp On |
| Occurs | Cold, Idle, Intermittently |
Trouble Codes
| P0137 | Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit Low Voltage |
| P0152 | Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit High Voltage |
| P0300 | Multiple Misfire Detected |
Message Closed
Vehicle Data
2011 GMC Sierra 3500 HD SLE
| VIN | 1GT522CG8B |
| Engine | 6.0 L / 8 cyl / FLEX |
| Trans | 6-speed Automatic (Electronic) |
| Delivery | Fuel Injection / EFI |
| Emissions | OBD-II Compliant |
| Symptoms | Poor Idle Quality, Cuts Out, Stall, Misfire, MIL Lamp On |
| Occurs | Cold, Idle, Intermittently |
Trouble Codes
| P0137 | Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit Low Voltage |
| P0152 | Heated Oxygen Sensor (Bank 2 Sensor 1) Circuit High Voltage |
| P0300 | Multiple Misfire Detected |
Video