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2002 GMC Yukon Denali 6.0L Misfire, MIL Lamp on
Vehicle came in for a check engine light, found code p0300, scanned and found all cylinders had some misfiring. Checked spark plugs and they were due for replacement. Installed plugs with new wires. customer drove for a few daysw and returned with CEL back on....
FIX posted 4/13/2011
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Related Documents & Media | VIN | 1GKEK63U62 |
| Engine | 6.0 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | Misfire, MIL Lamp On |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0174 | Fuel System Too Lean (Bank 2) |
| P0200 | Electronic Throttle Control System - Position |
| P0300 | Multiple Misfire Detected |
Message Closed w/Summary
Vehicle Data
2002 GMC Yukon Denali
| VIN | 1GKEK63U62 |
| Engine | 6.0 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | Misfire, MIL Lamp On |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0174 | Fuel System Too Lean (Bank 2) |
| P0200 | Electronic Throttle Control System - Position |
| P0300 | Multiple Misfire Detected |
Video