2001 GMC Sierra 2500 HD SL 6.0L Poor Idle Quality, Misfire, MIL Lamp on
this vehicle is missfiring on acceleration (check engine light flashing) and setting code p0300. monitoring missfire monitors cylinders 1/6 are missfing. just performed an all a/c delco tune up (ig, plugs wires, 2 coils, fuel filter and air filter) for the 1st...
Summary posted 6/23/2009
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Vehicle Data2001 GMC Sierra 2500 HD SL
Trouble Codes
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Message Closed w/Summary
Vehicle Data
2001 GMC Sierra 2500 HD SL
VIN | 1GTHC24UX1 |
Engine | 6.0 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / SEFI |
Emissions | OBD-II Compliant |
Symptoms | Poor Idle Quality, Misfire, MIL Lamp On |
Occurs | On Accel, Cruise |
Trouble Codes
P0300 | Multiple Misfire Detected |