2014 GMC Sierra 1500: engine failure

Filed Mar 26, 2026 · Engine · MO

6.2L Engine has well documneted problem with the valvetrane, I have had to fix it 2 times in 3 months. I have pictures and documents from servicing dealerships. Since my ownership, it has always been dealer-serviced. Unexpected catastrophic engine failure, which happened on a major interstate. GM service technicians know there is a valvetrane issue. This instance, the warning light came on under and overpass, and the truck coasted to a stop just past the end of the on-ramp. A GM (Chevrolet dealership currently has it) and a GMC dealership has serviced it since my ownership.

Filed Feb 18, 2026 · Engine · WA

The vehicle experienced complete lifter failure on cylinder number 4 bending the intake valve push rod thus shutting down the cylinder. The vehicle has 167,000 miles and is well maintained. The vehicle gave no warning signs that there was a problem. Simply driving down the road, normal engine temperature, normal oil pressure, the check engine light comes on at the same time the engine begins to mis-fire. Pulling over to the side of the road, I could hear lifter noise from the right bank of the engine. The dealership (Ocean Crest Chevrolet/GMC Warrenton, Oregon) confirmed the damage. The mechanic and the service manager both state the damage is a direct result of the GM cylinder deactivation system, and every single one they have repaired has been cylinder number 4. They further stated that GM has recommended a lifter change when repairing the damage, in other words, the lifters that were installed when the engine was originally built are defective. This damage occurs on both the 5.3 and the 6.2 with cylinder deactivation, and according to the dealership, it begins with cylinder number 4. This problem has also been responsible for cam damage which results in total engine replacement/rebuild due to metal contaminating the oil.

Filed Oct 31, 2025 · Engine · TX

Engine failed December 2024 at 140,274 miles. 2 cylinders failed due to lifter failure and had a total loss of power. Engine was replaced by a local shop.

Filed May 6, 2025 · Engine · GA

The engine has 160,000 miles and just driving the camshaft and the lifters went out during normal driving. It showed no problems before hand. I’ve heard from multiple people that this is a big issue with the 6.2l gmc Sierra engines. The mechanic also stated it’s there biggest problem. The repair cost are $4,000 - $6000 dollars and the have to pull the whole engine and just fixing those two things. The cost of an engine is $7000 for a used with 100,000 miles and to me it would just happen again in around 60,000 miles or less. For a new engine non oem so an off brand it would cost $8,00 - $10,000 just for the engine. Almost as much as the truck cost not including the labor. This is completely unacceptable cost for repair for a common problem with this truck.

Filed May 5, 2025 · Engine · 100,000 miles · FL

The contact owns a 2014 GMC Sierra 1500. The contact stated while driving 60 MPH, the check engine warning light illuminated. There was an abnormal knocking sound coming from the engine. The contact determined that the engine had seized. The contact stated that the failure was related to the federal safety agency Campaign Number 25V274000 (Engine and Engine Cooling). The vehicle was towed to the local dealer, where it was diagnosed and determined that the failure was due to the lifters, and there was low compression in the engine. The vehicle was not repaired. The vehicle was towed to an independent mechanic. The manufacturer was not contacted. The failure mileage was approximately 100,000.

Filed Jan 26, 2025 · Engine · GA

Timing chain broke with no warning and seized engine. Complete engine failure. Engine had to be replaced. Engine was inspected and replaced by certified gm dealer.

Filed Sep 17, 2019 · Fuel system, Steering · 125,000 miles · LA

Tl* the contact owns a 2014 gmc sierra 1500. While driving approximately 45 MPH, the vehicle lost acceleration and the steering ability seized. The contact pulled over to the side of the road, waited a few minutes, and then drove home. The vehicle was taken to musson-patout automotive group (214 us 90 frontage rd, new iberia, la 70560) where it was diagnosed that the fuel injectors failed. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 125,000.

Filed Oct 16, 2018 · Driver assistance, Steering · 71,000 miles · TX

Tl* the contact owns a 2014 gmc sierra 1500. While driving various speeds, the steering seized and the stability warning indicator illuminated. The vehicle was taken to classic buick gmc arlington (1400 e interstate 20, arlington, tx 76018, 817‑264‑7782) where it was diagnosed that there was a failure with the stability of the vehicle. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 71,000.

Filed Sep 11, 2018 · Brakes, Driver assistance · 103,000 miles · TX

Tl* the contact owns a 2014 gmc sierra 1500. While driving 70 MPH, the vehicle stalled and the stabilitrak warning indicator illuminated. In addition, the steering wheel and brakes seized. The contact powered off the engine while in traffic. The vehicle was restarted and drove normally. The contact stated that the failure recurred numerous times. The vehicle was taken to covert buick gmc (located at 11750 research blvd, austin, tx 78759, (512) 583-3411) where diagnostic testing was completed, but no failure code was found. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 103,000.

Filed Nov 22, 2017 · Steering · 34,941 miles · TN

Tl* the contact owns a 2014 gmc sierra 1500. While driving 5 MPH, the steering wheel seized before the vehicle accelerated. The contact drove the vehicle to wilson county chevrolet buick gmc (903 s hartmann dr, lebanon, tn 37090 (615) 444-9642). The contact was informed that the vehicle was included in an unknown recall and it was repaired for free. After the remedy, the vehicle was operable, but the failure recurred in less than 24 hours. The steering wheel seized a second time and excessive force on the steering wheel was used, but the wheel would not turn. There were no warning indicators illuminated. The manufacturer was not contacted. The vehicle was not serviced for the second failure. The failure mileage was 34,941.

Filed Aug 16, 2017 · Steering · 75,000 miles · FL

Tl* the contact owns a 2014 gmc sierra 1500. On several occasions, while driving various speeds, the vehicle stalled and lost power. The contact stated that the steering wheel seized and excessive force was required to maneuver the vehicle. The contact stated that the stabilink and power steering assist warning indicators illuminated. Also, while making left and right turns, the steering wheel jerked and the vehicle stalled. The contact had to jumpstart the vehicle when the failure occurred. The vehicle was taken to rivard buick gmc (located at 9740 e adamo drive sr60, tampa, fl 33619 (813) 498-2153) where it was diagnosed that the power steering module needed to be reprogrammed. The vehicle was repaired, but the failure recurred. The manufacturer was notified of the failure and the contact was provided case number: 8-3174003373. The contact was informed that the complaint would be escalated and that he would hear back within two to three days. The approximate failure mileage was 75,000.

Filed Jun 28, 2017 · Electrical · 38,000 miles · OK

Tl* the contact owns a 2014 gmc sierra 1500. While driving 10 MPH, the steering wheel seized and the vehicle lost electrical power and stalled. In addition, the "reduction power steering control", "engine power reduction", and "hood ajar" indicators displayed. When the contact attempted to turn the vehicle back on, the vehicle initially failed to start and the contact heard a clicking sound. The negative battery terminals also became extremely hot. The vehicle was taken to mark allen buick gmc (6300 new sapulpa rd, tulsa, ok 74131) where it was diagnosed that the ignition switch failed and needed to be replaced. The vehicle was repaired; however, the failure recurred. The vehicle was taken back to mark allen buick where the dealer stated that the vehicle was no longer under warranty. The vehicle was not diagnosed or repaired. The failure recurred several more times. The manufacturer was not made aware of the failures. The VIN was not included in the federal safety agency campaign number: 15v640000 (electrical system). The approximate failure mileage was 38,000.