NHTSA Complaint #11704828 — 2017 GMC YUKON

ENGINE issue reported to NHTSA

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Complaint Details

ODI Number	11704828
Vehicle	2017 GMC YUKON
Component	ENGINE
Date of Incident	November 29, 2025
Date Filed	December 13, 2025
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	NC

Consumer Description

Sitting at stop light engine began running rough and smoke coming out. CEL came on and began flashing, pulled over and had it towed. Diagnosis was PO300 misfire, dead miss on cylcinder 4, cylinder plug 4 is fuel fouled, cois is fine has good spark- caused by failed lifters. Needs engine replacement. Vehicle always serviced, garage kept and in mint condition with 89K miles.

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