2021 Chevrolet Silverado 1500: grinding or squealing brakes

Filed Sep 20, 2026 · Engine · NJ

The water pump went bad at 31,000 miles. If I continued driving and the pulley fell off the engine would overheat. I took it to the dealer and they confirmed the pump failure and want me to pay over $1,400 for repair that should be covered under warranty. There was no warning lamps lit, the pump just started making a grinding sound.

Filed Jun 6, 2026 · Engine · GA

Was on way to trade truck in onb6/6/26 and got a cylinder #7 misfire. Replaced spark plug and wire and moved coil packs around to trace and stayed on #7. Just had recall completed on 9/25/25 and stated that I've heard a rattling noise in engine area. They performed recall and changed to new oil suggested by GM. Dealership said noise was transmission. I told them that was replaced already within last 50k miles under warranty. Drive it for a few days and rattling noise still there. Took back to dealer on 9/30/25 at cost of $200 diagnositc and stated there is a grinding noise under light acceleration like it's metal on metal. Dealer stated that it was the rear seat rattling. There were NO noises in the cab, only coming from outside at driverside motor area. Called GM 10/1/25 to let them know the denial of motor replacement and we wanted 2nd opinion but we would have to pay out of pocket again. On 6/4/26 had to have truck towed to new dealer. New dealer won't make deal on new truck because of this and we have 2 trips already booked and paid for and 1 at end of June. New dealer is putting in service on 6/8/26 to verify cause. I have called GM after making repairs and they said it was between me and the dealer, there is nothing they can do. This is unacceptable! Im fine if they would offset cost and buy a new Chevy truck and we are going to fight to get it made right. This does make us want to change brands even though we've bought 5 Chevys in the last 10 years.

Filed Dec 24, 2025 · Engine · OH

GM 6.2L L87 that was outside of GM original recall engine failure. Engine was running, made loud grinding and squealing sounds then shut off and now engine is locked up.

Filed May 1, 2025 · Engine · 47,000 miles · NC

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving at various speeds, there was an abnormal metal-on-metal grinding sound coming from the engine. The contact also stated that whenever the vehicle was started, the engine was making an abnormal knocking sound. There was no warning light illuminated. The contact had not taken the vehicle to a local dealer or independent mechanic. The vehicle was not diagnosed or repaired. The contact had received notification of the federal safety agency Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The manufacturer was informed of the failure. The failure mileage was approximately 47,000.

Filed Feb 3, 2025 · Electrical, Engine · OH

The truck jerks when first driving and will jerk and lundge at various times and speeds. There is a almost grinding nosie. It often says "Reduced Engine Power" and the engine light comes one, the "Service ESC" notice comes on with the vehicle light, when this happens the truck will barely accelerate even if flooring the gas, continues to make a grinding noise. This happens frequently, but then lights go away, then come back on. Dealership pulled multiple codes (image attached). This is a huge safety risk due to failure of acceleration, and the jerking that causes the truck to jerk while in motion and slow.

Filed Jan 19, 2025 · Engine · AZ

I was driving 65mph down the freeway when the truck suddenly turned off and the dash told me to put in neutral and start again so I did just that. Made it about another mile and the truck completely turned off and wouldn’t turn back on there was nowhere to pull over or get off the freeway in that time frame so I was stopped in the middle of the highway with my family in the truck. Luckily a guy in another truck was able to push me over to the shoulder with his vehicle where I sat and waited four hours for a tow to the dealership. Two days later they called me and told me it’s spun a bearing and threw two rods and needed a new engine. I’m anal about servicing my vehicles they told me it just happens, but it was a brand new truck with only 35k miles. Ever since I got the new engine installed it’s constantly squeaking and they can’t seem to pin point the issues I feel like it’s going to happen again and this next time I’ll probably be out of warranty and it’ll be out of pocket for me to fix.

Filed Nov 15, 2024 · Transmission · FL

Transmission issues such as vibration/grinding, delayed shifting, rough shifting, clunking noises when changing gears, jerking sensations, vehicle is available for inspection. The transmission control valve may fail, causing the rear wheels to lock up. Transmission was inspected, Dealer claimed Torque converter issue and replaced that part, however, ISSUE still exists and Dealer claims that at the 2nd inspection, it was the tires giving me the rough shifting and vibration/griding I feel when driving. No warning messages, just continued vibration that turned into grinding at it continues to get worse. Issue started at 55K miles, truck currently has 60K miles, torque converter was replaced at 58K miles. The issues seems to be the same as the current GMC Diesel transmission recall. This recall SHOULD pertain the Gas Transmissions for the same year vehicles.

Filed Jul 29, 2024 · Transmission · FL

Heard and felt a loud clunk from underneath truck while driving 70 mph on interstate. Pulled off and next available exit with a hotel and parked truck. Cranked truck to move and it would not move forward or backward except for about a foot. Loud grinding noise. Had to call tow truck to tow us to nearest Chevrolet dealer. Dealer service department says transfer case has seized up and must be replaced. Transfer case is currently on backorder and not available from GM. Was given rental car to drive home, which is 10 hours away. Truck has been in shop for 7 days as for this writing and I still do not have an answer about when a transfer case will be available and they can repair my truck. I located transfer case at my local dealer but repair dealer says they have to wait on GM.

Filed Feb 12, 2024 · Transmission · 30,000 miles · MO

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at various speeds, the vehicle hesitated while depressing the accelerator pedal. The check engine warning light was illuminated. In addition, an abnormal grinding sound was coming from the engine. The contact stated that the vehicle surged forward after experiencing hesitation. The vehicle was taken to a dealer where the valve body was replaced; however, the failure worsened upon retrieving the vehicle. The dealer was notified of the failure and informed the contact of Technical Service Bulletin: 20-NA-187. The dealer stated that there was no repair for the bulletin. The manufacturer was also notified of the failure and the contact was provided a case number. The vehicle was not repaired. The failure mileage was approximately 30,000.

Filed Feb 27, 2023 · Transmission · MI

While vehicle is in 4-wheel drive or 4 auto or 4 L. It makes a grinding whining noise! I have contacted the dealer Newberry motors of Newberry MI 49868. I asked them about a service bulletin I saw on the noises I am hearing, and I was told service bulletins are only assigned to a vin number and not groups of vehicles. which is a lie!!! SO THE GRINDING NOISE IS BAD WHEN IN 4 WHEEL DRIVE. PERIOD. DOES NOT MAKE THE NOISE WHILE IN 2 WHEEL DRIVE. THANKS FOR ANY HELP THAT CAN BE PROVIDED!