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2008 GMC Sierra 1500 WT 4.3L Misfire
Posted to GM Driveability on 4/3/2012 9 Replies

Truck came in the P0301 cyl 1 misfire. Removed #1 plug and it had carbon tracking about 1/4" wide and the length of the porcelin. Easy fix. Replaced plugs and wires with factory parts. Also had a coolant leak-water pump and head gaskets replaced. Still have th...

9 Replies Received (View Replies)

  Related Documents & Media  2008 GMC Sierra 1500 WT

 
Message Closed w/FIX

car Vehicle Data

2008 GMC Sierra 1500 WT

VIN 1GTEC14X98
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMisfire
OccursCold

Trouble Codes

P0301Cylinder 1 Misfire Detected
Message Closed w/FIX

car Vehicle Data

2008 GMC Sierra 1500 WT

VIN 1GTEC14X98
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMisfire
OccursCold

Trouble Codes

P0301Cylinder 1 Misfire Detected