Chevrolet Silverado 2500 engine failure problems

Filed Sep 29, 2026 · Engine · 121,000 miles · GA

The contact owns a 2021 Chevrolet Silverado 2500. The contact stated that while driving 15 MPH, there was a knocking sound coming from the engine. The vehicle was taken to the local dealer, and the contact was informed that the engine was blown causing complete engine failure. The engine was replaced under warranty, but the failure reoccurred. The warranty company inspected the vehicle. The failure mileage was approximately 121,000.

Filed Sep 29, 2026 · Engine, Fuel system · 9,100 miles · CA

The contact owns a 2026 Chevrolet Silverado 2500. While driving 65 MPH, the vehicle lost motive power and the steering wheel seized, and the brakes failed to stop the vehicle. White smoke with a burning odor was coming from the engine compartment. The vehicle was on an incline, which helped the vehicle to decelerate. The contact pulled off the road and came to a stop with smoke billowing under the hood. A Sheriff driving by called the fire department. The fire fighters arrived and determined that the smoke had become extinguished. The vehicle was towed to the dealer, who determined that the fuel line had ruptured and there was diesel fuel collecting inside the engine compartment. The contact was informed that the fuel system had a catastrophic failure and the engine needed to be disassembled for further diagnostic tests. The manufacturer was notified of the failure by phone and a case was filed. The failure mileage was approximately 9,100.

Filed Aug 31, 2026 · Engine · TX

Engine failure shut off on idle. Engine bay shakes. It unsafe to drive no indication of engine failure

Filed Aug 21, 2026 · Engine, Transmission · MT

While driving at a speed of around 40 mph on a paved city street in Bozeman, MT, I heard and felt a Super loud clunk in my Chevy engine transmission or drive train.. I immediately stopped to see if something ran into the vehicle. No apparent visual damage of any kind. It felt and sounded like like something jammed within the transmission or drive train. The truck has less than 12k miles and has been babied so far. I love the truck. Oil level is normal and nothing leaking underneath..I took it immediately to Billion GMC in Bozeman. They found nothing wrong however the service manager recounted this regarding another customer who described the exact same issue with the same year vehicle and same transmission: Another GMC owner experienced the same symptom before the transmission seized at highway speed and locked the wheels. Because this presents a potential loss-of-control hazard, I am requesting that Chevrolet open a Technical Assistance Center case, document all diagnostic findings in writing, and determine whether the vehicle is safe to operate before returning it to me. The service manager who recounted this event is named Jay.

Filed May 14, 2026 · Engine · AK

2020 3.0 diesel duramax sucked in the antifreeze and caused a hydrolock. The dealer says that it is not covered under warranty since the engine was over 100k miles. They did offer a new engine for $30K which I declined. The truck was always well taken care of and only received the best in all products

Filed Mar 16, 2026 · Engine · IL

Similar to the issues that were on the gas version of this engine and the recall associated with it. The engine seized on the expressway. When it was towed to the dealership, they said it was catastrophic engine failure. They found a lot metal shavings in the oil pan. They did not diagnose any further due to cost. At the time it happened, there were no warning lights or check engine lights on.

Filed Jan 19, 2026 · Engine, Fuel system · MI

first issue was around April-May 2025 when my engine started knocking and burning fuel. Warning light came on and it went right in to the dealer where I have all my maintenance done. They determined that it due to (2) faulty fuel injectors and I had them replaced at that time. In December of 2025 my engine started doing the same thing as before with the knocking and burning fuel and reduced speeds when on the highway so again it went into the dealer. It has since been in there and first was told it was the fuel injector again. They priced out the one was bad and I asked them to replace the remaining 6 fuel injectors so I didn't have this issue again in the near future. They did and the vehicle had the same issues going on. During the next inspection it was determined that the engine needed new rocker arms. These were replaced but this also did not solve the problem and the vehicle would not pass the regeneration on the engine. During the next inspection it was determined that we needed to replace a cylinder and one of the valves. After this was complete they were still having issues and then I was told that the Piston was bad and there are (2) bad valves so I need an entire engine replacement. My truck only has 130,000 miles and has been in the shop for almost 2 months last year from engine issues and it has had all maintenance completed at he same dealership with Records.

Filed Oct 30, 2025 · Engine · OH

I was driving down the road and I heard a clunk. I lost all power and coasted into a farmers field. The dash board said lost power, nothing else. I had no warning. Oil pressure was where it should be until is quit. Keller Chevrolet contacted us and told us the engine blew. The connecting rod broke and the piston come apart. I had service done on my truck 4 days prior. I always service my vehicle every 3,000 miles or 3 months which ever comes first. I have about 121,000 miles on my 2001 pickup. It has always been serviced at either Bob Schmidt Chevrolet or Keller Chevrolet. We are in the process of getting a new engine from GM and having it installed at Keller Chevrolet. You can contact them for more information.

Filed May 30, 2025 · Fuel system · FL

Driving down the road in heavy traffic and had complete engine failure due to loss of fuel. Diagnosed as fuel control module. I have seen where GM recalls have been made for similar issues. This put me in danger of collision. Truck is at the dealer and will cost $957.00

Filed Dec 23, 2024 · Transmission · 122,000 miles · CA

The contact owns a 2021 Chevrolet Silverado 2500. The contact stated while driving 55-60 MPH, the rear wheels seized. The contact had to release the accelerator pedal to self-correct the failure. The contact stated that the failure occurred twice. The vehicle was taken to the dealer, and the contact was informed that the vehicle was included in the federal safety agency Campaign Number: 24V797000 (Power Train); but was repaired. The contact stated while driving 25-30 MPH after the repair, the failure reoccurred a third time. The check engine warning light illuminated and the “Engine Power Reduced” message was displayed. The vehicle was taken to another dealer, Chevrolet of Montebello (310 W Whittier Blvd, Montebello, CA 90640); but was not diagnosed or repaired. The manufacturer was made aware of the failure and opened a case. The failure mileage was 122,000.