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2004 GMC Sierra 2500 SLE 6.0L Engine Misfire
Posted to GM Engine on 8/6/2014 10 Replies

Vehicle came in with P0300, Random misfire. We changed to spark plugs and wires due to high millage and the vehicle was due for a tune up. When the misfire was still present we continued testing. When we induced propane into the valve cover at the pcv port (bl...

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  Related Documents & Media  2004 GMC Sierra 2500 SLE

 
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car Vehicle Data

2004 GMC Sierra 2500 SLE

VIN 1GTGC24U54
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedEngine Misfire
ConditionsMisfire at Idle
Message Closed

car Vehicle Data

2004 GMC Sierra 2500 SLE

VIN 1GTGC24U54
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedEngine Misfire
ConditionsMisfire at Idle