2014 GMC Sierra 1500 engine problems

Related recalls

• Recall 14V007000Jan 13, 2014325,213 vehicles
  ENGINE AND ENGINE COOLING:EXHAUST SYSTEM

  General Motors is recalling certain 2014 model year Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles, and 2015 model year Cadillac Escalade and Escalade ESV; Chevrolet Silverado HD; and GMC Sierra HD, Yukon, and Yukon XL, equipped with a 4.3L engine or 5.3L engine.

  Risk: The overheated exhaust components may melt nearby plastic parts and may result in an engine fire.

  Remedy: General Motors will notify owners, and dealers will reprogram the engine control module, free of charge. The recall began on January 16, 2014. Owners may contact Chevrolet at 1-800-222-1020 and GMC at 1-800-462-8782. General Motors' number for this recall is 14008.

What owners say

1. Filed May 27, 2026210,000 miMNEngine

   The contact owns 2014 GMC Sierra 1500. The contact software modification done at a transmission shop, affected the Active Fuel Management not allowing diagnostic. The manufacturer was not notified of the failure. The approximate failure mileage was 210,000

   NHTSA complaint #11740415 · source
2. Filed Mar 26, 2026MOEngine

   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.…

   NHTSA complaint #11727180 · source
3. Filed Feb 23, 202681,000 miUTTowedEngine

   The contact owns a 2014 GMC Sierra 1500. The contact stated that while at a stop sign, the vehicle stalled. No warning lights were illuminated. The vehicle was towed back to the residence. A dealer was contacted; however, the vehicle was not diagnosed or repaired. The contact researched and became aware of an undisclosed recall; however, the VIN was not under recall. The manufacturer was not notified of the failure. The failure mileage was approximately 81,000.

   NHTSA complaint #11719926 · source
4. Filed Feb 18, 2026WAEngine

   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…

   NHTSA complaint #11718877 · source
5. Filed Oct 31, 2025TXEngine

   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.

   NHTSA complaint #11696738 · source
6. Filed Jul 11, 2025ALElectrical SystemEngineTransmission & Drivetrain

   Truck completely shuts off at any speed going down the highway. Complete loss of power. Have to coast to side of road and restart vehicle.

   NHTSA complaint #11672901 · source
7. Filed May 14, 2025101,000 miKYEngine

   The contact owns a 2014 GMC Sierra 1500. The contact stated that while driving on the highway at 55 MPH, the vehicle lost automotive power and the steering wheel became stiff. The contact stated that the vehicle decelerated to 20 MPH, with several unknown warning lights were illuminated. The vehicle was taken to an independent mechanic where it was diagnosed, and the contact was informed that the engine had failed and needed to be replaced. The vehicle was not repaired. The…

   NHTSA complaint #11660907 · source
8. Filed May 6, 2025GAEngine

   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…

   NHTSA complaint #11659196 · source
9. Filed May 5, 2025100,000 miFLTowedEngine

   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 NHTSA 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…

   NHTSA complaint #11659007 · source
10. Filed Apr 30, 2025ILBody & StructureElectrical SystemEngine

    I am the original owner of a 2014 GMC Sierra 1500 (VIN: [XXX] ) and began experiencing serious mechanical and electrical issues while the vehicle was still under warranty around 40,000 miles. These included engine RPM fluctuations at idle, vibrations under acceleration above 65 MPH, and intermittent misfiring — all symptoms that are now believed to be early indicators of defective lifters or valve train components. I also experienced repeated electrical failures including a…

    NHTSA complaint #11657701 · source
11. Filed Jan 26, 2025GAEngine

    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.

    NHTSA complaint #11638618 · source
12. Filed May 8, 2024PAElectrical SystemEngineSteering

    I know this is a well known issue with these trucks. Have had issues with power steering not working at low speeds which they claim it’s do to low voltage. This has happened numerous times and then on May 3rd I went to back into my driveway off a busy state route with hills on each end of the road. Put my hazard lights on let three vehicles pass and then I turned the wheel and gave it gas soon as the truck got into the middle of the road it shut off. Everything stopped…

    NHTSA complaint #11587719 · source

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology