2015 GMC Sierra 1500: engine knocking or ticking

Filed Dec 8, 2025 · Engine · TN

The GMC Sierra 1500 started a knocking sound. The collapsed lifter on a AFM cylinder bent a push rod which led to cam failure. Metal fragments are throughout the oil system.

Filed Oct 31, 2025 · Engine · WA

This occurred 5+ years ago. Coming home one night I had a sudden loss of power with the truck and barely made it home. Was able to limp the truck to the dealership the next day and was told that one side of the engines lifters had failed. Prior to the failure I had noticed a ticking sound coming from the engine that was becoming increasingly more prominent. It was several thousand dollars to repair. Fortunately the failure occurred near home, not on the freeway where I could have been dodging cars while trying to limp the truck to the shoulder. Some online research while the repair was being done revealed that several other owners with the 6.2L engine had the same problem. When I mentioned it to the dealer the response was that they had no bulletins from GM on the issue and I was stuck with the bill. Got the same response a year or two later when the torque converter on the transmission went out. The reason I am reporting it now is I saw that GM is recalling 6.2L vehicles with lifter issues but not back to 2015 even though the issue appears to go back farther than that. They claim it's limited to a specific run of engines for the recall. They have been having various lifter problems for many years that have put drivers in danger when they fail but refuse to acknowledge it. As for the repair they made to the engine I've driven another 70 K miles and the ticking has started again. I fear another failure. Please note that the date previously given for the incident is my best guess.

Filed Apr 30, 2025 · Engine · PA

With all the GM engine problems being recalled, the known issue witht he AFM/DOD on all the models 2013 and up on 5.3L and 6.2L engines should have been recalled. The valves are known to collapse and nending push rods, causing damage to the cam shaft. This can cause ht eengine not to run. The symptoms and possible icidents include the same as the current recall the federal safety agency Campaign Number: 25V274000. My engine has been repaired twice now due to this AFM/DOD issue. I have all the paperwork from GM dealer that repaired it. I will upload the first repair, I need to scan the second repair. The engine is now making the ticking valve sound ans the vehicle is services regularly. What component or system failed or malfunctioned, and is it available for inspection upon request? AFM/DOD valves collapse causing enegine damage. How was your safety or the safety of others put at risk? Lack of power while driving, loud engine knock Has the problem been reproduced or confirmed by a dealer or independent service center? Yes, by the dealer Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? Insepcted by the dealer, and only the damaged parts replaced, not all the valves that can still collapse. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? No warning, engine light came on due to misfire on both incidents.

Filed Apr 29, 2025 · Engine · 122,000 miles · TX

The contact owns a 2015 GMC Sierra 1500. The contact stated while driving approximately 50 MPH, the vehicle started to lose motive power and then stalled. The contact stated that there was a black cloud of smoke coming from the exhaust pipe. The check engine warning light was illuminated. The contact had the vehicle towed to an independent mechanic. The vehicle was diagnosed, and it was determined that the rod bearings had failed and needed to be replaced. The vehicle was not yet repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 122,000.

Filed Feb 5, 2025 · Engine · ID

Purchased this vehicle on 06/29/2023 from Robideaux Motors in Coeur d Alene ID. with 81,397 mile on the odometer. On 01/05/2024 the 6.2L engine with 84,109 miles, started having a ticking sound after starting it at my son's house two miles from home. I called the dealer and was told to bring it in for diagnosis by a tech. While driving the truck to the dealer the ticking got worse and motor started to shudder and the check engine light came on. Cause was a misfire on cylinder 4 due to bent push rod and failed lifter. Replaced lifter bank 2 with new push rod. Total cost was $2,852.74 (have invoice). After many calls and letters to my extended warranty company, they finally paid $1688.54 of the total cost. On 08/29/2024 the same ticking sound started again as well as the shudder and check engine light. I had it towed back to Robideaux Motors and was told it was a misfire on cylinder 6 due to lifter failure. Robideaux Motors did repair under their repair warranty. I know that this vehicle is not included in class action suit, due to the year. I feel this to be a continuing problem with the GM 6.2 and 5.3L motors encompassing many model years. Just wanted to document that the number of years covered in the law suit should be expanded.

Filed Feb 2, 2024 · Engine · 43,000 miles · NY

The contact owns a 2015 GMC Sierra 1500. The contact stated while his daughter was driving approximately 25 MPH, the vehicle started vibrating violently. The contact stated that his daughter reported seeing several unknown warning lights illuminated. The vehicle was stopped and towed to a dealer. The dealer diagnosed and determined that the rod bearings were damaged and caused damages to the lifters. The contact was informed that the rod bearings and lifters needed to be replaced. The vehicle was not repaired. The manufacturer was informed of the failure. The contact researched online and related the failure to Technical Service Bulletin: 20-NA-038 (Engine). The failure mileage was approximately 43,000.

Filed Jul 22, 2022 · Engine · TX

2015 gmc sierra crew 4x4 with 92k miles suffered from lifter and push rod malfunction on cylinder 7. The engine started making a knocking noise, there was a loss of power and the truck was shaking. It seems this a common theme with these trucks.

Filed Feb 21, 2019 · Brakes, Engine · 46,000 miles · MI

When I first got the truck the brakes operated perfectly fine after about three days the brakes on the front of the truck would lock up while I was driving and would not release. After two sets of calipers two sets of brake pads a set of rotors a two weeks go by with the mechanic trying to figure out what is wrong with this truck. They then replace the brake master cylinder, there was no improvement. Turns out to be the brake booster had failed along with the hydraulic ABS control unit. There were no warning lights on whatsoever the whole entire time the brakes were locked up the ABS light didn't come on until the brake booster was replaced indicating that the ABS control unit was also bad. Now I am experiencing a ticking coming from the engine. The ticking occurs at idle end as the throttle is being activated. However the local dealership has refused to give me any information as of why it could be making this ticking noise or is just unwilling to say anything .

Filed Jan 20, 2019 · Brakes, Driver assistance · TX · crash

Brake pedal or that increased effort is needed to depress the brake pedal. Also, in some cases a tick or ticking noise may be heard, which may sound like an exhaust manifold leak.

Filed Nov 12, 2018 · Brakes · 88,000 miles · TX

I first noticed the issue on the morning of saturday, november 10th as I was backing into a parking spot. As I was backing in, I noticed all of a sudden the brake pedal was on the floor and I was about to plow into a curb and threw the truck in park. I didn't think anything of it. The second time it happened was one day later as my fiance and I had just completed a 200 mile drive home. I was pulling into the parking lot at our townhouse complex and as I was pulling forward to back into the space, I noticed I had no braking power whatsoever. I had to throw the truck in park to keep it from hitting a neighbors vehicle. I opened the hood with the engine running, and noticed a ticking noise I hadn't heard before and my brake pedal only had about 1/4" of travel left. I could pull the pedal back to where it is supposed to be but it would just fall back down to the floor. I was able to very slowly and carefully park the truck using park and the parking brake. With the engine still running and the vehicle in park, I depressed what was left of the brake pedal and held it to the floor and heard a moaning noise coming from the area near the master brake cylinder and could feel the brake pedal shuddering under my foot. I feel unsafe driving this vehicle and I was giving no warning of the brake failure. I am having the vehicle towed to sewell buick gmc in dallas and will update when they find cause. I will also be calling gm customer support as I feel this is a huge safety hazard.

Filed Sep 10, 2016 · Transmission, Visibility · 1,779 miles · CA

First of all the headlights are very dim and at night cannot see nothing.dealer said it is what is .very bad !! Also my sierra on window sticker states comes with all terrain tires it does not have all terrain tires . They are 265/65/r18 goodyear wrangler sra .I worked for goodyear and those tires are all season !!! Not all terrain as specified on window sticker !! I talked to dealer and called customer service at gm they never call back and they said those are the right tires.they are not according to my attorney who states the window sticker is totally incorrect and is fraudulent check your tires and window stickers and compare and look on goodyears website you will see.also my transmission clunks and knocks and shifts incorrectly dealer states its normal I spend 40k on a new truck and all I have are problems and gm does nothing. It downshifts horrible what can I do???