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2002 GMC Sierra 2500 HD SLE 6.0L Misfire
Posted to GM Driveability on 8/13/2009 10 Replies

Hi There

any help in advance is greatly appreciated. This truck came in with flashing Engine light at speeds above 60mph but no drivability concern. Truck runs excellent. Searched archives and found possible needs crank relearn. Tried with otc and snap on and...

10 Replies Received (View Replies)

  Related Documents & Media  2002 GMC Sierra 2500 HD SLE

 
Message Closed w/FIX

car Vehicle Data

2002 GMC Sierra 2500 HD SLE

VIN 1GTHK29U62
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursAlways

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

2002 GMC Sierra 2500 HD SLE

VIN 1GTHK29U62
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursAlways

Trouble Codes

P0300Multiple Misfire Detected