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2007 GMC Yukon XL 1500 Denali 6.2L Misfire
Posted to GM Driveability on 12/3/2014 10 Replies

#5 picks up above 750 rpm in gear or above 1000 rpm in neutral. A known good spark plug, plug wire, coil and injector have been tried. The valve springs have been removed and inspected. The valve guides are tight. The intake valve felt gummy when turned by han...

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car Vehicle Data

2007 GMC Yukon XL 1500 Denali

VIN 1GKFK66837
Engine6.2 L / 8 cyl / GAS
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMisfire
OccursIdle

Trouble Codes

3055 cylinder misfire
Message Closed

car Vehicle Data

2007 GMC Yukon XL 1500 Denali

VIN 1GKFK66837
Engine6.2 L / 8 cyl / GAS
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMisfire
OccursIdle

Trouble Codes

3055 cylinder misfire