Chevrolet Silverado 1500 misfire problems

Filed Oct 27, 2026 · Engine · OH

On October 18, 2026, I was driving my 2021 Chevrolet Silverado 1500 with the 5.3L V8 engine at highway speeds with my wife and two young daughters in the vehicle when the engine suddenly lost power and the truck began shaking violently. The check engine light flashed, and "Service ESC" and "Service Parking Brake" warnings appeared on the dashboard. The sudden loss of power at highway speeds created a serious safety risk to my family and surrounding motorists. I was able to get the vehicle off the highway safely. Restarting the truck did not resolve the issue, and it was no longer drivable. The truck was towed by a AAA contractor to a Chevrolet dealership. Following inspection, the dealership verbally diagnosed a broken camshaft and advised that the entire engine required replacement. The truck had approximately 98,000 miles at the time. A written diagnosis has been requested, and the vehicle is currently at the dealership. The truck has a documented history of engine problems. In July 2023, at approximately 33,500 miles, a Chevrolet dealership diagnosed code P0300 and documented misfires on cylinders 1, 3, and 7. Warranty diagnostic and repair work was performed. Another check engine light concern was documented in November 2024 at approximately 62,300 miles. In April 2025, at approximately 69,600 miles, Chevrolet again investigated a P0300 multiple-cylinder misfire condition. Beginning around 75,000 miles, the truck also began displaying recurring low-oil warnings. I added oil whenever these warnings appeared and maintained regular oil changes, supported by service records. Despite these prior engine concerns and dealership visits, the engine suffered a catastrophic failure without an immediate warning before reaching 100,000 miles. I am concerned about the potential for sudden engine failure and loss of propulsion at highway speeds and believe this warrants a safety investigation.

Filed Oct 22, 2026 · Engine · OH

Check engine light came truck started running rough and on low power took to dealer the code was misfire cylinder 5 they found cylinder badley scorred so the replaced the motor at 27000 miles a 6.2 in a 2025 silvarado 1500 trail boss

Filed Oct 20, 2026 · Engine · WA

Had a misfire in cylinder 4 so I took it to the dealership to diagnose. It held compression and switched the plugs and still had the same misfire. They said it was a common issue that the lifters go out with the DFM. It only has about 50k miles on it and I am the original owner

Filed Oct 15, 2026 · Fuel system · 51,042 miles · NE

The contact owns a 2022 Chevrolet Silverado 1500. The contact stated that while driving at approximately 65 MPH with cruise control engaged, the vehicle suddenly lost speed, the check engine warning light started flashing, and the engine started sputtering. The electronic stability control (ESC) and traction control warning lights were also illuminated. The vehicle was taken to an independent mechanic for diagnosis. Diagnostic trouble codes P0203 and P0303 were retrieved, indicating a fuel injector 3 circuit malfunction and cylinder 3 misfire. The fuel injector wiring circuit was corroded, and the fuel injector on the left bank was replaced. The contact contacted the manufacturer by telephone and was informed that the bumper-to-bumper warranty had expired and that the failure was not covered under the powertrain warranty. The failure mileage was approximately 51,042.

Filed Oct 12, 2026 · Engine · CA

My 2023 Chevrolet Silverado 1500 ZR2 equipped with the 6.2L L87 V8 has exhibited abnormal engine behavior since shortly after purchase, well before GM announced the engine recall. Symptoms include extremely loud intermittent metallic lifter/valvetrain noise during cold starts, persistent rough idle, and noticeable engine vibration that causes the truck to rock back and forth after warming up. Paradise Chevrolet and Bunnin Chevrolet subsequently performed GM's prescribed PicoScope inspections, and both reported passing results. The oil-viscosity recall remedy was also completed, but the symptoms remain unresolved at 47,133 miles. I am concerned about potential internal engine damage and the possibility of sudden engine failure or loss of propulsion. Given the federal safety agency's investigation into L87 engine failures following recall repairs, I am requesting further investigation into the adequacy of GM's recall remedy.

Filed Oct 8, 2026 · Engine, Transmission · IL

A lifter failed and caused an injector to fail and a push rod to bend. The truck has misfires on two cylinders now. The AFM system is a large issue known for 2014 and newer 1500 trucks as mine is a 2015. The truck is in need of a motor rebuild or replacement and the dealer I took the truck to for the work quoted me over $9000 for the work to be completed. The engine has less then 125,000 miles on it.

Filed Oct 2, 2026 · Engine · OH

I was driving down the highway doing 70mph when my check engine light started flashing. I had to pull over and turn off my truck and turn it back on in order for it to go away. I brought it to the dealership and they explained that I had a misfire on the entire driver side of the engine and I would need to replace it. I have kept up on all of my vehicle maintenance but it still requires a new engine, costing $11,000 if not covered under warranty. This is a known problem with the Chevrolet 6.2L V8 engine and is now a class action lawsuit with the company.

Filed Sep 24, 2026 · Engine · WA

Engine failure on our 4-cylinder- it just quits same problem as on the 6-cylinder - it just stops running or runs rough. No warning signs and no indication that it is about to fail. Hazardous on the freeway. Vehicle has been at the mechanics for a month now and GM keeps saying the engine is on backorder.

Filed Sep 23, 2026 · Engine · FL

vehicle has been to the dealership many times for issues with the engine and burning oil, we have brought it in to chevy wallace dealer for all this and have paperwork for all this, however torque convertor has been replaced 2x in one year due to faulty parts. the dealeership finally told us that the afm lifters cause the engine to go and needed a engine replacement. my wife has been so upset over this matter because she loved the truck. all this has been inspected by dealer so many times and we kept geting the run around. we had multiple check engine lights and misfire codes. then the last straw was when the engine had a horrible knocking noise which we have on video.now that she traded the truck in because dealer said it was not covered under warranty because it lapsed by 1 month we had to get a different vheicle due to knowbody helping us and now were screwed with a insane payment. we have been dealing with this for a few years and no help from chevy even with a extended warranty that covered it all. i am not asking for the world but chevy has to be responible for something. my wife really needs help with this we lost a damn nice truck and want some kind of compinsation for it

Filed Sep 17, 2026 · Electrical, Engine · PA

2021 silverado engine failure. Yes it was inspected by a dealership and my extended warranty company and serviced by the dealership. Back on August 5th I experienced a misfire cylinder 3 and felt loss of power. On August 7th the dealership diagnosed both camshafts, 1 lifter, 1 valve, and 1 fuel injector was damaged and never received at warning lights or messages on the dashboard. I was without the vehicle for 39 days and within 10 hrs after picking up the truck i got an engine light on and several new codes on it and can not be driven and being towed. I feel these engines need a recall as it is well documented that these engines go between 60 and 80,000 miles and some a lot less than that, mine has 70,800 and went and now being towed with in less than 24 hrs after engine repair. I will be in contact with a lawyer to follow up on this matter.