2015 Chevrolet Silverado 1500: engine knocking or ticking

Filed Sep 15, 2026 · Engine, Transmission · IN

I am filing this complaint regarding a serious engine lifter/Active Fuel Management (AFM) failure in my 2015 Chevrolet Silverado 1500. The vehicle experienced a lifter failure that caused significant engine problems and created a potential safety concern while driving back from shopping: loss of power, engine misfire, severe shaking, ticking, check-engine light, stalling, inability to maintain speed, etc. The vehicle had approximately 200k miles at the time of the failure. The vehicle was inspected by a local mechanic, which diagnosed the problem as collapsed/failed lifter. The repair required/will cost approx. 3k or more estimated My concern is that this does not appear to be an isolated failure. Other owners of 2015 Chevrolet Silverado 1500 trucks equipped with GM's Active Fuel Management system have reported lifter failures, including failures resulting in engine damage and sudden loss of engine power or propulsion. A sudden lifter or related engine failure can create a significant safety hazard, particularly when it occurs at highway speeds, while merging into traffic, crossing an intersection, or in another situation where the driver depends upon the engine to maintain acceleration and vehicle speed. I am reporting this in hopes that GM can be held accountable as they knew about these defective lifters but did nothing but hide it.

Filed Apr 22, 2026 · Engine · 101,000 miles · SC

The contact owns a 2015 Chevrolet Silverado 1500. The contact stated that while driving 40-45 MPH, there was an abnormally loud ticking sound coming from the passenger's side of the engine compartment. There was no warning light illuminated. The vehicle was taken to a local dealer and to another dealer, where it was diagnosed and it was determined that the engine needed to be replaced. The contact was informed that the repair was not covered because the VIN was not under recall. The vehicle was not repaired by the dealers due to the cost. The vehicle was taken to an independent mechanic, where the engine was taken apart, and it was diagnosed that the camshaft was worn, and there were metal shards in the engine oil. The vehicle was repaired. The manufacturer was not contacted. The failure mileage was approximately 101,000.

Filed Jul 24, 2025 · Engine · 124,000 miles · MN

The contact owns a 2015 Chevrolet Silverado 1500. The contact stated that after arriving to the intended destination, there was an abnormal ticking sound coming from the engine compartment. No warning lights were illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the lifters, resulting in damages to the engine. The vehicle was not repaired. After investigating the failure, the contact related the failure to the federal safety agency Campaign Number: 25V274000 (Engine and Engine Cooling); but the VIN was not included. The manufacturer was notified of the failure and referred the contact to the federal safety agency Hotline for assistance. The failure mileage was 124,000.

Filed Jan 22, 2025 · Engine · PA

Knocking noise in the engine , took it to the mechanic and he stated lifter failer

Filed Nov 30, 2023 · Engine · 70,186 miles · AR

The contact owns a 2015 Chevrolet Silverado 1500. The contact stated that while her husband was driving 75 MPH and overtaking another vehicle, the engine made an abnormal clunking sound, and the check engine warning light illuminated. Additionally, the engine started making abnormal knocking sounds. The contact's husband pulled into an AutoZone parking lot, where it was diagnosed and determined that cylinder #6 was misfiring and that the knock sensor had failed. The contact stated that her husband replaced the parts; however, the failure persisted. The vehicle was towed to the residence. The vehicle was then towed to the dealer, where it was diagnosed and determined that cylinder #6 was misfiring. The dealer determined that the lifters needed to be replaced. Additionally, the dealer informed the contact that further inspection was required to determine whether the camshaft needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 70,186.

Filed Aug 3, 2023 · Engine, Transmission · CA

A 2015 Chevrolet Silverado seemed to be running rougher after an oil change. When inspected by dealership, Litha Chevrolet located 200 East Cypress Ave in Redding CA, they identified lower end knocking and lifter ticking noise. Also identified was PO300 was randomly missing and PO324 Knock Sensor performance. The dealership recommended total engine replacement, after reviewing the report. The 2015 Silverado is currently out of commission. It is not roadway safe. The Silverado has been serviced regularly as recommended and has not been in any collisions in the past. The truck has had one owner previously, my father, who left me the truck when he perished. I relied on the truck for daily and extended transportation for myself and my children. I have maintained excellent care of the 2015 Silverado with regular maintenance and services. There is no explanation of this issue other than it was caused by faulty equipment from the manufacturer. If you can provide any information regarding how to fix this please contact me. Thank you

Filed Sep 13, 2022 · Engine · SC

The truck started making a loud ticking noise.The truck then started stalling when pulling out into the road from a standstill.Then the check engine light came on.Took it to the dealership. Was told it is the common lifter problem.That GM has known about for years. But refuse to address. Please let GM know about this problem.Thanks. [XXX] INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

Filed Jul 7, 2022 · Engine · 58,000 miles · MN

The contact owns a 2015 Chevrolet Silverado 1500. The contact stated while driving approximately 10 MPH, there was a loud ticking sound coming from the engine while driving into the driveway. Shortly afterwards the check engine warning light illuminated. The vehicle was towed to the independent mechanic who diagnosed the vehicle as a failure with the compressor lifter. The vehicle was repaired; however, the failure reoccurred. The manufacturer was notified of the failure. The approximate failure mileage was 58,000.

Filed Aug 6, 2021 · Airbags · FL · crash · 1 injury

Side rail airbag deployed knock me out and total my vehicle.

Filed Feb 14, 2019 · Engine · TX

Hello just wanted share this about my 2015 chevrolet silverado my started making a strange knock sound sqealing noise on engine so took it to chevrolet dealer to have it ckecked out they called me and told that it had exhaust manifold bolts broke off in engine block it will cost $4000 dollars to repair I feel that is a gm manufacture issue even my extended warranty will not cover this problem I feel that shouldn't pay someone needs to investigate why these bolts broke off

Filed May 16, 2018 · Engine, Fuel system · 75 miles · TX

The engine has a ticking noise like a lifter out of adjustment. I'm told this is normal its a ticking fuel pump for the fuel injectors. I think gm is better than that and can figure out how to quite it down. If there engineers can't figure it gm should consider finding some that can! The next time I buy a gm product it will need to be quite if not I'll brake a family tradition for 80 years and buy another brand.

Filed Nov 1, 2017 · Brakes · KY

Brake pedal gets very hard when driving at slow speeds and in reverse. Makes a ticking sound like the anti lock brakes are kicking in but no dash lights illuminate. Almost rear ended a vehicle travelling 25mph but was able to pull in a parking lot to avoid collision. Truck has 79xxx miles