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2002 GMC Sierra 2500 HD 6.0L Misfire, MIL Lamp on
Posted to GM Driveability on 5/11/2010 10 Replies

Vehicle only missed at highway speeds under a load. Misses between 65 and 75 MPH. Cylinder 1 and 6 are the only cylinders missing. Runs great without misses at lower and higher speeds.

10 Replies Received (View Replies)

  Related Documents & Media  2002 GMC Sierra 2500 HD

 
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car Vehicle Data

2002 GMC Sierra 2500 HD

VIN 1G23687916
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursUnder Load, Between 2400 and 2700 Rpms
Misc.P0300

Trouble Codes

P0300Multiple Misfire Detected
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car Vehicle Data

2002 GMC Sierra 2500 HD

VIN 1G23687916
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursUnder Load, Between 2400 and 2700 Rpms
Misc.P0300

Trouble Codes

P0300Multiple Misfire Detected