2017 GMC Yukon XL engine problems

Filed Sep 1, 2026 · Engine · 137,000 miles · NC

The contact owns a 2017 GMC Yukon XL. The contact stated that on several occasions while driving at various speeds, there was a loud ticking and tapping sound coming from the engine compartment. The vehicle was taken to two independent mechanics, where it was diagnosed and determined that there was a lifter failure caused by the AFM system and an engine misfire, and that the lifters, camshaft, and timing chain needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 137,000.

Filed Dec 8, 2025 · Brakes, Engine · 148,246 miles · UT

The contact owns a 2017 GMC Yukon XL. The contact stated that the check engine warning light was illuminated. The contact stated that while idling, the vehicle started shuddering violently. The contact stated that while driving to the residence at an undisclosed speed, the vehicle stalled and failed to restart. The vehicle was pushed into a church parking lot. The contact's father used a scanner to scan the vehicle, and a DTC for engine misfire was retrieved. The contact's father replaced the spark plugs, but the failure persisted. The vehicle was towed to an independent mechanic, where it was diagnosed and determined that the engine was blown. The vehicle was then towed to another independent mechanic, where the engine was replaced. Additionally, the contact stated that upon depressing the brake pedal, the brake pedal was stiff and required to be pumped several times for the vehicle to respond as intended. The contact stated that the failure occurred while starting the vehicle and while driving at various speeds. There was no warning light illuminated. The contact stated that the brakes had been replaced annually, but the failure persisted. The contact stated that the brake pedal shuddered upon starting the vehicle. The contact received a notification for ABS from the OnStar Mobile App. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 148,246.

Filed Dec 3, 2025 · Engine · NC

On July 3, 2025 we were traveling on a 4 lane at 55mph. Without any prior symptoms, the vehicle began to shake violently. It shook so hard that the skid warning light simultaneously came on. It was followed by the check engine light. The oil pressure guage started bouncing around. We stopped driving the vehicle and had it towed to VanYork GMC dealer in Asheboro, NC on this same day. (Invoice attached) VanYork GMC determined that cyclinder 5 was misfiring. We paid to have them repair it, and we began driving the vehicle again. (invoice attached) On or about August 1, 2025 we were traveling on an interstate at 70mph. Without any forewarning, the vehicle began to violently shake. Just as before, the skid warning light simultaneously came on, followed by the check engine light came on, and then the oil pressure guage started bouncing around. As there was heavy traffic on the interstate, the failure created a very dangerous situation for us as we tried to maintain our lane, and stay in control of the vehicle until which time we were able to safely maneuver to the side of the road. The vehicle was again towed to Vann York GMC in Asheboro, NC. (invoice attached) On December 3, 2025 we received a call from VannYork GMC saying that the vehicle repairs were complete. It had been in their repair shop for 4 months. This repair began with lifter and camshaft replacement. When this repair was unsuccessful, they decided that the vehicle needed a 'new' rebuilt engine. Since GMC has not offered any assistance with the expense of this new re-built engine, we will have to satisfy the $12,000 bill when we pick it up. After experiencing two very dangerous episodes, we are happy that we did not wreck, but certainly, this not the situation we expected from a high-end vehicle with only 76,169 miles on it.

Filed Nov 30, 2025 · Electrical, Engine · SC

At stop light vehicle began to sputter, run rough, and make noise. I was less than a mile from my home, no check engine light on. I turned the vehicle off, used a scanner to have codes P0106 and P0506 show. I had vehicle towed to Complete Car Care. Misfire on multiple cylinders, 3 push rods bent, one valve spring broken. The right Cylinder head assembly had to be removed and replaced with 8 new push rods, 8 new lifters, gaskets, seals, and valve spring. Total cost $3304.79, the vehicle only has 69,801 miles on it. In addition one of the rear tail lights has a known issue (found out on google), intermittently goes out, was never notified. I took the car to Jim Hudson GMC to be told it would cost $475 plus tax because I did not come in early enough even though it is to be warranted up to 70,000 miles. I am greatly concerned that this engine has the same manufacturing defects of the current recall and extended recall for the GMC Yukon Denali engines.

Filed Nov 30, 2025 · Electrical, Engine · SC

At stop light vehicle began to sputter and make noise, I was very close to my home, no engine light on. Upon turning vehicle off and using a code reader codes P0106 and P0506 was on scanner. I had vehicle towed to Complete Car Care. Mis fire on multiple cylinders. Vehicle has 69,801 miles. 3 push rods bent and I valve spring broken. The right Cylinder head assembly had to be removed and replaced with 8 new push rods, 8 new lifters, gaskets, seals, and valve spring. Cost was $3304.79. In addition the rear tail light has been sporadic on and off, GM was to replace up to 70,000 miles. When I took it to them they stated the time limit had expired, yet I had not been informed until I did a google search. GM requesting $475 plus tax. I am concerned my vehicle has the same manufacturing defects as the GM motors being recalled with total engine failures.

Filed Oct 28, 2025 · Engine · WI

Engine failure 6.2L cylinder failure. Recall already in effect for other years. But it seems that it is needed to be expanded. I had to do a complete engine replacement and all oil related components. Metal was found easily in the oil and oil filter. I was luckily in a parking ramp when it happened so I did not crash. I was already driving for 45 minutes prior on the interstate. Could have been very dangerous at high rate of speed.

Filed Apr 1, 2025 · Engine · SC

The engine developed a ticking noise which turned out to be bad lifters and bent lifter rods, and a bad valve lifter oil manifold.

Filed Jan 21, 2025 · Engine · 131,000 miles · CA

The contact owns a 2017 GMC Yukon XL. The contact stated while parked and attempting to start the vehicle, the contact heard an abnormal knocking sound coming from the vehicle. The contact attempted to depress the accelerator pedal however, the vehicle failed to respond as needed. The contact stated that a dealer and an independent mechanic were contacted. The vehicle was towed to an independent mechanic where it was diagnosed and determined that the camshaft was not aligned. The contact was informed that the independent mechanic would be able to align the camshaft; however, if the failure persisted there would be a cost for the repair. The vehicle was not repaired. The manufacturer was not notified of the failure. The contact related the failure to N232430470 - Special Coverage (Camshaft Position Actuator Valve Solenoid - Bank 2 (Left Side) Exhaust); however, the VIN was not included in the special coverage program. The approximate failure mileage was 131,000.

Filed Oct 25, 2024 · Engine · 20,000 miles · NH

The contact owns a 2017 GMC Yukon XL. The contact stated that while stopped on several occasions, the accelerator pedal was depressed; and there was a loud clunking noise coming from the engine compartment and the vehicle violently jerked each time. There were no warning lights illuminated. The vehicle was taken to a dealer seven times however, the failure was not replicated. The manufacturer was not notified of the failure. The failure mileage was approximately 20,000.

Filed Jun 10, 2024 · Electrical, Engine · TX

drivers side tail light flickering and sometimes not working a $900+ cost! I issue with right hand side when suv has 32k miles, seems like this is an ongoing issue, luckily it was still under warranty the 1st time. The AC condenser when out in April, also an know issue with the Yukon, they wanted to charge me $1500 to repair, I was able to find someone to do it for around $600, now the outlet and usb ports seem to not work. I also had an issue with the braking system , dealer couldn't figure it out, I finally found someone to repair it, $500 fix. For what I paid for the Yukon, you would think they would use top of the line parts!