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International Automotive Technicians Network
2001 GMC Sierra 2500 SL 6.0L Misfire
Posted to GM Driveability on 8/16/2006 13 Replies

Hi guys got a bit of an odd one. This 2500 has a semi-random misfire at idle. Genisys scanner shows misfires on cylinders 1,2,5,6,7 an average of 6 times (sometimes 2,4 or none) for every 100 misfire data cycles.

Noticed a couple plug wires had some nicks in...

13 Replies Received (View Replies)

  Related Documents & Media  2001 GMC Sierra 2500 SL

 
Message Closed w/FIX

car Vehicle Data

2001 GMC Sierra 2500 SL

VIN 1GTGK29U91
Engine6.0 L / 8 cyl / GAS
Trans6-speed Standard
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursIdle
Message Closed w/FIX

car Vehicle Data

2001 GMC Sierra 2500 SL

VIN 1GTGK29U91
Engine6.0 L / 8 cyl / GAS
Trans6-speed Standard
DeliveryFI / SEFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursIdle