Engine And Engine Cooling Related Problems of the 2021 Chevrolet Silverado 3500

Table 1 shows one common engine and engine cooling related problems of the 2021 Chevrolet Silverado 3500.

Table 1. Engine And Engine Cooling related problems of Chevrolet Silverado 3500

Problem Category Number of Problems
Engine And Engine Cooling problems
3

Engine And Engine Cooling problem #1

I was driving down the highway at speed limit when the dash lights came on and the truck started jerking went to a mechanic and he stated it was a fuel ejector after getting it replaced the issue still occurs often check engine light comes on and off and this the only transportation I have for work.

Engine And Engine Cooling problem #2

My 2021 chevy Silverado 3500 [xxx] motor began requiring a quart of oil every 3-4 weeks. I took my vehicle to a gm dealer in October 2024 and the stated the couldn't find any issues. Fast forward to December 2024 my motor began reading low compression and saying stop the vehicle. I took the vehicle back and pressured them to find out whats wrong with the truck as I only have 76,000 miles and I have performed all of the necessary maintenance. I even have a Chevrolet platinum protection plan for warranty coverage. I have gotten the run around for months and I have yet to get my vehicle repaired. After taking my truck to a certified 3rd party the verified that the lifters failed and the motor would likely need to be replaced or rebuilt. The mechanics reported this information to the Chevrolet warranty company and the stated the refuse to provide and repairs unless I produce oil change receipts or return the vehicle back to a dealership and pay for the dealer to tear the motor down. Please help me!!! im stuck paying $819 a month for a truck I haven't driven regularly since December 2024. Please please please help me sincerely [xxx] general motors [xxx] 2021 3500 hd wt 4x4 case # 9-xxx [xxx] I have a 2021 chevy 3500 lt (dually) been having issues with a rough idle so I figured to replace the plugs, coil packs and wires as my truck just hit 70,000 miles. After doing the full tune up nothing changed, so I scheduled an appointment with my local chevy dealership. They kept my truck for about a week and never completed the diagnosis. I picked the truck back up and took it to another chevy dealer and the told me after a week or so that I had lifter issues and the truck would probably need a new motor. The truck seemed a little sketchy from the gate in the first 50k miles it consumed oil like it was a ol 250k mile chevy. . . . The alternator went out at around 50k miles and the fuel efficiency would be 6-8 mpg at best. . . . . Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Engine And Engine Cooling problem #3

Was driving my 3500 (an 8000# truck capable of towing 20k#) and suddenly the vehicle lost power and steering, forcing me to the shoulder of a curvy mountain road, going downhill. Truck then started blinking lights and telling me to restart. Upon restart, the truck would not engage the transmission. Truck was in drive but the motor was just rev'ing. I turned truck off and then back on and it seemed to return to normal. Am not comfortable driving truck at this time. Gm has been notified of the issue, and, has not diagnosed an issue, as of this writing.


Engine And Engine Cooling related problems in other Chevrolet Silverado 3500 model year vehicles:



Silverado 3500 Service Bulletins
Silverado 3500 Safety Recalls
Silverado 3500 Defect Investigations