2020 Chevrolet Silverado Engine Problems

-My 2020 Trail-boss 6.2 Engine broke and stopped producing power and shut off, it is available for inspection and has been inspected by my local Chevy Dealer Tom Gibbs Chevrolet. -My son was crossing a railroad track and it shut off as he topped the tracks it shutoff at the tracks and he was able to coast down out of the way. If it shut off a second earlier he would have been stuck on the tracks and there is a list of what if's. My grandson in the car seat, my son gets out breaks his ankle and can't get my grandson out there is so many things that could have happened. -The dealer stated the 6.2 engine is known to have mechanical failures -The local dealer stated valve cover was removed and no movement in valve train needs new engine at a cost of $21,343.24 They realized that the original $250 rubber serpentine belt outlasted the engine with 123K miles on it -No warning lights, no rough running, no sounds just shut off no power.

* same part gone bad as other recalled vehicles. "Coolant control flow valve bad". Engine fan is staying on high blast, message displaying " engine power is reduced" truck will not drive at full power because the truck thinks its overheating because of bad part. If i remember correctly, it is code p1098. Bad part is intermittent. It Will happen randomly driving down the road. It comes and goes. I believe this is a safety factor . There is a special warranty or recall regarding this part with my year truck, but not my vin? Why not? Same part going bad with same codes and same problem ? Please consider looking into this concern and expanding the recall or concern for this reduced engine power safety concern. Thank you for looking into this.

September 2020 received new vehicle ( purchased platinum extended warranty at time of sale that expires 9/22/2027)-December 2022 heard loud ticking & misfires & check engine light on took to dealer who found #2 cylinder intake lifter collapsed at that time was under warranty (9924 miles) and dealer replaced not only damaged lifter but all lifters and guides (I have this repair invoice from 12/2022) On March 31 2026 (19,000 miles)ticking came back took silverado to dealer to be checked 4/3/26 they kept truck and had to take top of engine apart where they found that the #2 cylinder lifter has collapsed again the technician went ahead & replaced lifter before getting authorization from warranty company, GM or us to do repair dealer told us that they can put old damaged lifter back in truck & we can take truck back if we want- we are waiting for the inspector that warranty company wants to send to inspect the truck they still have truck 2 1/2 weeks later the warranty company wanted to see all receipts & log for all 7 oil changes which i gave to dealer 4/13/26 was passed to warranty company who accepted all & they want to send an independent inspector to see truck on 4/20/26 we are waiting to hear if he came This is a serious safety issue as this engine 6.2 (L87) Z71 has been prone to lifter failures since 2019, we only found this out now when the same lifter collapsed a second time & that this engine has been known to shut engine down while driving & severely damaging it & even possibly causing an accident If we get no satisfaction from dealer or warranty company as a next step we will be asking for a GM regional representative to come inspect the truck see the repeat lifter failure, open a case with a corporate representative & look into the Lemon Law as this is a recurring issue-- it also affects the value & resale value of our Silverado

My truck has been in the shop for two weeks. Blown up, oil everywhere. I was told to file a complaint because GM has issues a recall for these engines, but I am not in the years it has been issues for. I was told this case is open and could then cover my engine. EA25007 is the number I was given.

I am reporting a failure involving a 2020 vehicle equipped with a GM 6.2L V8 engine that developed a cylinder 8 misfire along with diagnostic trouble codes P0300, P0500, and P0521. Dealer inspection revealed a severely scored camshaft and metal debris present in the engine oil, indicating significant internal engine damage. The failure appears to be related to a lifter or valvetrain malfunction, leading to improper valve operation and engine misfire. This issue occurred unexpectedly and creates a serious safety concern due to the risk of sudden engine failure during operation. This may be associated with known problems affecting this engine type and should be investigated further.

While driving in early morning while still dark outside, loud noise occurred with decreased acceleration on interstate. This placed my life and the lives of others at risk due to not being able to accelerate out of traffic coming behind me. Vehicle Taken to chevy dealership who advised lifter had broke and damaged camshaft. This occurred out of nowhere without any warning or lights on dash

I was driving at approximately 75 to 80MPH on the highway when my engine shutoff and the vehicle died while driving it. I was able to coast to the side of the road but had to cross two lanes to the left to do so while weaving in traffic to get to the shoulder of the road. There was no warning of any kind that would have made me aware of an issue prior to this happening. I was unable to get the vehicle started again and had to have it towed to my local dealership Hendricks Chevrolet in Columbia, SC. That occured on Saturday March 14th 2026, that Monday, I have had all regular and scheduled maintenance done to my vehicle either on time or prior to the recommended time including oil changes and the like. I went to the dealership and they told me that the engine had seized up and that this was a very well documented and common issue with the 6.2L L87 V8 Engine dating back to 2019 but that GM had only issued recalls on the 2021 - 2024 years to correct the issue. I asked the Service manager at Hendricks Chevrolet to file for a Goodwill Coverage request on my behalf to cover the repairs of the engine and he refused and stated that I had to do so through GM customer service line. I have done so since and my case number with GM is 92108267. My vehicle is currently at the dealership awaiting the go ahead from GM to replace the engine. I have an extended warranty on my vehicle that goes to 120,000 miles and the issue occured at 114,113 miles. This is a very well documented case where the engine connecting rod bearings fail due to oil starvation that leads to engine seizure.

Engine lifter failure while traveling at highway speeds, loss of power in traffic during rush hour on a multi lane interstate nearly got rear ended and side swiped.

The contact's son owns a 2020 Chevrolet Silverado 1500. While the contact's son was driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The vehicle started shaking erratically, and several unknown warning lights were illuminated. The vehicle was driven to the shoulder of the road, and the engine seized. The vehicle was towed to the son's residence. The vehicle was later towed to the dealer, where it was diagnosed with lifter failure in cylinder #5 and a failed CAM shaft. The contact was informed that the engine needed to be replaced. The vehicle was being repaired. The contact was informed that the failure was a manufacturer's defect. The contact referenced an unknown recall; however, the VIN was not associated with the recall. The manufacturer was made aware of the failure, and a case was filed. The manufacturer agreed to assist with a 10 percent discount on the cost of the repair. The failure mileage was approximately 109,758.

Engine started knocking, brought it to dealer, scoped cylinder number two and confirmed piston ring failure. New engine needed.

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving approximately 40 MPH, there was a banging sound coming from the engine compartment. The vehicle was taken to a dealer, where it was diagnosed, and determined that the lifters and the camshaft needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 120,000.

The first thing was the whole engine shut itself off going 40mph and slowing down thankfully after I turned the truck off and back on it started right back up then I was driving 75 on the highway a couple days later and the whole truck started to shake as check engine lights came on and flash and the engine started to tick and groan. We pulled the spark plugs and cylinder 5 had clearly not been firing as it was designed to and then later found that the entirety of cylinder 5 had basically shredded itself from the inside out. Now my truck is waiting at the shop for a new engine. Both cases I had my kids in the car trying to get home.

My entire engine and the right bank lifters failed. Thankfully, these issues didn't fail until my truck was parked in my garage. No warning lamps did not trigger until these issues started. There was no warning. I have been having engine issues with this truck dating back to 2022. I will include all documents showing the issues I've had in the past 3 years. I was informed by the dealer that this is a known issue with this year and model of truck and even they were surprised that GM hasn't issued a recall. The vehicle has been inspected by the dealership only.

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving approximately 25 MPH, the vehicle lost automotive power. The check engine warning light was illuminated. The vehicle was towed to a local dealer, where it was diagnosed with an engine failure. The vehicle was not repaired due to the cost. In addition, the contact related the failure to an unknown NHTSA Investigation. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was approximately 89,000.

Unexplained complete engine failure. Engine seized, no warnings, on gauges or lights. Dealership repair shop indicates engine has seized up.

Lifter failure in 2020 Silverado 5.3 engine causing loss of power while driving.

The engine started making a lot of knocking sounds and it has no oil pressure now. The shop says the engine needs to be replaced.

We own a 2020 Silverado with a 6.2L L87 engine… I am aware of open investigation # EA25007… Our vehicle had sudden engine failure.. no prior warning lamps before failure. (Our vehicle had no open recalls) Once vehicle engine failed left us with no power… had to coast vehicle to a stop. Will not restart. Verified proper oil level on dipstick so vehicle was not low on oil. Had to tow vehicle to shop .. retrieved code P0016 - crankshaft position Oil pan was removed and found bearing material as mentioned by GM issued recall 25V-274. Verified oil pickup tube was not clogged. All symptoms explained by 25V-274, we’ve experienced.

Major engine failure, a lifter went bad and caused metal all through the motor. Had to purchase new motor.

The contact owns a 2020 Chevrolet Silverado 1500. The contact stated that while driving at various speeds, the vehicle unexpectedly sputtered. There were no warning lights illuminated. The dealer was contacted; however, the vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure and referred the contact to the NHTSA Hotline for further assistance. The approximate failure mileage was 73,000.