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2017 GMC Yukon Denali 6.2L Misfire
Posted to GM Driveability on 2/6/2026 11 Replies

2017 Yukon Denali with 107K, runs great otehr than a cyl 5 misfire. Replaced coil and plug, code came right back. Checked engine compressiona dn all cyl are similar!

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car Vehicle Data

2017 GMC Yukon Denali

VIN 1GKS2CKJXH
Engine6.2 L / 8 cyl / FLEX
Trans8-speed Automatic (Electronic)
DeliveryFuel Injection / None
EmissionsOBD-II Compliant
SymptomsMisfire
OccursCold, Cold, Cold

Trouble Codes

P0305Cylinder 5 Misfire Detected
Open Help Request

car Vehicle Data

2017 GMC Yukon Denali

VIN 1GKS2CKJXH
Engine6.2 L / 8 cyl / FLEX
Trans8-speed Automatic (Electronic)
DeliveryFuel Injection / None
EmissionsOBD-II Compliant
SymptomsMisfire
OccursCold, Cold, Cold

Trouble Codes

P0305Cylinder 5 Misfire Detected