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2005 GMC Sierra 1500 SLE 4.8L Misfire
Posted to GM Driveability on 11/9/2014 33 Replies

Truck came in missing with code p0300, Cylinder #6 miss at idle. Swapped coil,plug and plug wire with #2 still miss on #6. Performed fuel balance test and all ok. Have -31 on bank 2 short term fuel trim and -12 long term. compression tested ok around 140-160,c...

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  Related Documents & Media  2005 GMC Sierra 1500 SLE

 
Message Closed w/FIX

car Vehicle Data

2005 GMC Sierra 1500 SLE

VIN 1GTEK19V45
Engine4.8 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMisfire
OccursAlways

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

2005 GMC Sierra 1500 SLE

VIN 1GTEK19V45
Engine4.8 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMisfire
OccursAlways

Trouble Codes

P0300Multiple Misfire Detected