general problems of the 2021 Chevrolet Silverado 1500 - part 2

Gm 6. 2l motor failure causing motor to have to be replaced. Not covered by gm's recall due to being VIN specific.

The coolant control valve has failed, my VIN isn’t a part of the special coverage for this bad part ( though the same part and model is covered).

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The contact stated that since the purchase of the vehicle, the transmission had failed three times. The transmission had been replaced three times in the past. The second time the transmission failed at approximately 40,000 miles. The contact related the most recent failure of the check engine warning light to the fuel pump driver control module. The manufacturer was not made aware of the failure. The failure mileage was approximately 169,800.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the contact heard a popping sound, and the engine seized. No warning lights were illuminated. The contact coasted off to the shoulder of the road. The contact stated that while attempting to restart the vehicle, there was an abnormal banging sound coming from inside the engine. The vehicle was towed to an independent mechanic, where the vehicle was diagnosed with engine failure. The contact was informed that the engine had an internal failure. The contact was informed that the engine needed to be replaced or rebuilt. The vehicle was not repaired. The contact referenced an ongoing NHTSA investigation. The contact declined the repair while awaiting the results of the current NHTSA investigation. The manufacturer was not made aware of the failure. The failure mileage was approximately 108,000.

Dealer did the l87 6. 2 recall (basically changed the oil to 0w-40). Based on the “clean bill of health” we towed our imagine trailer to tucson. Stayed for 3weeks over thanksgiving and then started back home. We then towed it back home to fort collins and when we reached denver the check engine light came on and within seconds the engine stopped. We had to coast off the freeway and ended up on an interstate interchange ramp (blind and dangerous). The motor was seized completely. Oil pressure and temps were all normal before the engine stopped. Oil was super hot when I checked it. After a big adventure dealing with getting the truck and trailer to a safe place via a tow from onstar, they towed the truck to the nearest dealer. I had to rent a uhaul truck to tow the trailer home (another 80 miles or so) with wife, two dogs and myself crammed in the cab. The dealer got chevy to cover the engine replacement but I was out $200 for the trailer tow to safety and another $200 for the u-haul rental. Chevy would not cover that.

I have three check engine codes p0340 camshaft position sensor a circuit (bank 1 or single sensor) p0341 camshaft position sensor a circuit range/performance (bank 1 or single sensor) p0016 crankshaft position - camshaft position correlation - bank 1 sensor a the last one is the same code that’s involved in the l 87 recall that my vehicle is three months shy of I have a 2021 silverado trail bus 6. 2 l that was manufactured in December 2020 I have very rough idol delayed throttle response in multiple camshaft codes that correlate with the crankshaft symptoms of the l 87 recall.

The contact owns a 2021 Chevrolet Silverado 1500. The contact received notification of NHTSA campaign number: 25v274000 (engine and engine cooling). The vehicle was taken to the dealer, where the contact was informed that the recall parts were not yet available, and that the dealer had been made aware of the recall. The manufacturer was not made aware of the issue. The contact had not experienced a failure.

The contact owns a 2021 Chevrolet Silverado 1500. The contact received notification of NHTSA campaign number: 25v274000 (engine and engine cooling); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that the check engine warning light was illuminated, and the vehicle was idling roughly. The vehicle was taken to a certified mechanic who replaced an undisclosed sensor. The contact stated that the warning light remained illuminated. The vehicle was taken to the dealer, who diagnosed that the camshaft had failed and there were metal shavings found in the oil filter; however, the dealer was unable to determine the cause of the failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 119,000.

My truck was brought in for the recall inspection for the 6. 2 lt recall. After showing the dealer pictures from the oil that drained out of my previous oil change that was filled with metal, they expedited the inspection. But with substantial amount of metal in the oil filter the truck still passed the test. Gm corporate has told me that once the inspection is done, it is out of their hands and that my truck will be covered under the new extended warranty. Gm also should have the pictures of the metal flakes from the previous filter. I fill like this is a failure to ensure the safety of their product. I do not fill safe having my children or my wife in the truck due to the inevitable of the engine loosing power due to the faulty cam shafts that need to be replaced.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while stopped at a stop light, the vehicle began to shake violently. There was no warning light illuminated. The contact then stated that there was an abnormal knocking sound coming from the engine while depressing the accelerator pedal. The contact pulled over and restarted the vehicle; however, the knocking sound persisted. The contact slowly drove the vehicle to the residence and later had the vehicle towed to the dealer. Upon investigation, the contact discovered NHTSA campaign number: 25v274000 (engine and engine cooling); however, the VIN was not included in the recall. The vehicle was not diagnosed or repaired and remained with the dealer. The manufacturer was not notified of the failure. The failure mileage was approximately 34,000.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving 55 mph and depressing the accelerator pedal, the vehicle failed to respond as needed, and the vehicle lost motive power and came to a stop in the middle of a four-lane highway. There was no warning light illuminated. The contact was unable to pull over to the side of the road, and the vehicle failed to restart. The vehicle was towed to an independent mechanic, where it could not be serviced. The vehicle was then towed to the dealer, where metal shavings were found in the oil pan, and the contact was informed that the engine needed to be replaced. The contact stated that the vehicle remained at the dealer for a month, and the dealer was in the process of ordering the part. The vehicle was not yet repaired. The contact related the failure to NHTSA campaign number: 25v274000 (engine and engine cooling); however, the VIN was not included in the recall. The manufacturer was notified of the failure and informed the contact that assistance would not be provided because the vehicle was purchased used and was not covered under warranty. The failure mileage was approximately 135,000.

The vehicle had originally stopped in a moving lane of traffic. It was towed to a dealership and the engine was rebuilt with a remanufactured engine. The engine idled rough and seemed to be misfiring. The check engine light kept coming on. The dealership stated the vehicle was repaired and I picked it up. The engine is worse. It idles rough like before. It is rough while driving and the check engine light continues to come on. I am about to return the vehicle for the third time before it stops in the roadway again.

My engine on my 2021 Silverado 1500 with the 6. 2l l87 engine failed, I took it to the dealer to repair and they quoted $4500 to fix it. I know these same engines are being recalled and gm is having to replace them, but they told me mines not one of the ones being recalled and the won't cover it because the warranty was up 5,000 miles ago. I highly doubt it's a coincidence, that mine failed after only 65,000 miles and it's not a manufacturer flaw. The vehicle is currently at the dealership awaiting repairs.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, there was a ticking sound coming from the engine compartment, and the vehicle lost motive power. There was no warning light illuminated. The contact received notification of NHTSA campaign number: 25v274000 (engine and engine cooling). The vehicle was towed to the dealer, where it was diagnosed with crankshaft failure. The dealer discovered metal shavings in the engine oil and oil filter, and the contact was informed that the engine needed to be replaced. The replacement engine was ordered, and the vehicle was repaired. After the engine replacement, the contact stated that while driving at an undisclosed speed, the vehicle felt difficult to operate. Additionally, while the vehicle was parked and turned off, the vehicle failed to restart and lost motive power without any warning lights illuminated. The vehicle was inspected by an independent mechanic, who found that the metal bar located near the battery was very loose. The mechanic also informed the contact that due to the prior crankshaft failure, the transfer fuse box, starter motor, and battery had failed and required replacement. The vehicle was repaired. The contact stated that upon inspecting the replacement engine, the manufacturer’s sticker indicated that the engine was a remanufactured engine, and there was dirt and debris on the engine. The manufacturer was made aware of the failure. The approximate failure mileage was 48,650.

Vehicle was at a stoplight with the auto start button engaged on it. The vehicle completely stalled. All the power is drained from the car. Leaving me stranded in the highway. I got it towed and when replacing the battery still nothing will roll over or even turn on.

The truck has 61000 miles on it I got it in August there is engine knock which sounds like a bearing might’ve went and now the rod is loose in there. There is a large recall already regarding the same make and model of my truck for this exact issue.

Dealer says my vehicle is not approved to even check the motor out. Build date 6/21 6. 2l motor under recall.

Engine just died going 55 mph on a paved road. Gm repair shop says engine needs to replaced. They originally told me my 6. 2l engine was a recall, but my VIN didn’t show on database. Seems gm’s scope was not wide enough on their recall. I feel I deserve a new engine.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving 30-40 mph, the check engine warning light and other unknown warning lights were illuminated, and the engine was running rough. The vehicle was taken to an independent mechanic, where the contact was informed that the vehicle could not be diagnosed due to a lack of equipment. The vehicle was then taken to gary sapp automotive, where it was diagnosed with engine failure. The mechanic determined that the engine needed to be taken apart for the repair or replacement. The vehicle was not repaired due to the cost. The contact related the failure to NHTSA campaign number: 25v274000 (engine and engine cooling). The manufacturer was notified of the failure and informed the contact that the vehicle was not covered under an extended warranty. The failure mileage was approximately 89,000.

Gm 6. 2 engine recently tested for the national recall regarding valve and lifter issues. Recall was cleared as ok, but they found burnt cylinders in multiple areas within the engines. Several issues are still occurring with this engine, and I think most are related to the recall effort. 1. Engine will use oil at an abnormal pace when towing anything heavy. Recently used an additional 2 quarts of oil when towing a trailer that weighed 10, 000 pounds over 1600 miles. 2. Recently engine seemed to lose compression at a stop light and turned off. This happened an additional 5 times until I could get the truck off the road and into a safe place. The engine would immediately start and then die within 5-10 seconds. Towed to a Chevrolet dealership and the service manager tried to move it into the bay for diagnostic testing. Started and stopped 4 additional times as they attempted to drive if 100 feet into the service bay. Towed to my hometown dealer that afternoon for diagnostics testing. The next morning when they started the truck it cranked fine and has been running since (7 days). No lights appeared on the dash during the breakdown or warnings appeared in their testing I have spoken to several other Chevrolet owners about the 6. 2 engine issues and what was occurring with my truck they also had seen an increase in oil usage when towing heavy. I believe that your investigation needs to delve further into not only issues with the lifter / rods but also into other mechanical concerns that are oil dependent and related such as burnt cylinders. This last issue occurred on October 27, 2025.

I’ve purchased my chevy silverado brand new and I’ve had to bring it to the dealership multiple times for code p1098 this will be the second time this has been repaired. Looking on line this is very common. This is the second time I have to leave my vehicle at the dealership and not I don’t have my vehicle.

I own a 2021 Silverado 1500 6. 2 v8. Since October of 2025 this truck has been in and out of the dealership. First engine (oct. 24, 2025) issue as my teen driver was on the expressway and luckily was able to get off and get safely to an unknown persons driveway. Then the motor seized and died as we tried to drive it home. A friend was able to tow it to our driveway and gm sent a tow truck to pick it up and haul to the dealership. The truck was in the dealership for 2 weeks prior to the first engine failure and "everything was fine". Nov 26, 2025 new engine comes in. December 12th second motor was put in and failed as cylinder 7 had no compression. Dec 31, 2025 picked up my truck with the third motor. Jan 14, 2026 took the truck back again for engine ticking, noise, loss of propulsion/speed, running sluggish. Dealer kept it until Jan 21, 2026. Dealer said they drove it and the noise is normal injector noise. They did nothing other than drive it. They will not investigate any further as it wasn't pulling codes or warning lights. It is still not running right and I'm waiting for it to have a major failure. It is not safe to drive. The first motor did not show any warnings either. Gm really needs to get this figured out soon. No vehicle with 52,000 miles should have 3 motors put in it. This is not quality work and concerns for safety are real.

While driving the engine shut off without any warning lights which could have caused a serious accident causing bodily harm or property damages as I was unaware of the issue and was going 50mph at the time - this occurred on 10/23 I noticed a ticking and brought the vehicle to the dealer for inspection on 10/20, at the time of this inspection the technician said that they could not replicate the sound and I explained that this was happening at 3000 rpm. The technician said that I would need to bring the vehicle back and they would need to start to take apart my engine piece by piece and I said the ticking is part of the known lifter problem and the technician shrugged his shoulders offering no other options. That same day I took my vehicle to another independent shop and he confirmed the ticking is a known issue that occurs prior to the lifter collapsing. After the vehicle shut itself off, and I was able to restart the vehicle, many warning lights appeared on my dash, there were none there before, one of the codes that was flashing was esc and the vehicle began to lurch and downshift. I called my mechanic who said the code was to do with the electronic stability control system but I should be okay to drive until I could get to him for him to look at the codes. On 10/24 I took the vehicle to the mechanic and another code was for cylinder 3 misfire which he stated could be the collapse of the lifter and the codes will not clear. The vehicle now downshifts without warning, there is an engine knocking that is occurring and the vehicle is not safe to drive as the engine may seize at any moment.

August 30th 2024 the pickup was just turning to roughly 30,000 miles and started a knocking sound. The gm dealership tore it apart and fixed what I believe they said was a bent rod. I cycled through two oil changes and decided to pull an oil sample. I sent oil sample off for analysis. The oil analysis came back urgent with very high levels of copper and lead showing in the testing. I then called the gm dealer and they had me bring it in. They did not send off any oil sample because when they pulled the filter, they could already see metal in the new oil. They had me call gm customer service because it is not part of the current recall. I contacted gm customer service on October 27, 2025. They gave me a case number 80392504. I was to bring it back to the dealership which I did. Again dealership called said metal was found again but gm will not do anything with it because it’s not under recall. They also told me that gm told them it is ok to have metal in the oil. I said well if it is ok to have metal in the oil I want to know what the test results show. Then I said, I want to know where the maximum allowance is. They did not know that. I said so it is an infinite amount according to them because there is no standard to check against. I said I’m not taking this in for a recall. I am bringing it in because I had my own diagnostic testing done. It failed. I drive back-and-forth to north dakota and I told them this is very unsafe if that motor goes out and it’s -30 or -45 and my little boys in the back the heater is not going to work. That is very unsafe and deadly. When you have extreme temperatures like that, we cannot just be running around. Tell the engine blows up or locks up. I told them this needs addressed you don’t pay $82,000 for a vehicle and not get any support or care. I said if something happens to my boy, they will wish that they put a new motor in there or fixed it. They are playing god. They need their hand, slapped and do the right thing. Thank you.

Like many others, I have been dealing with many issues with this truck. I have had repeated cooling valve failures, resulting in decreased engine power and constant cooling fan running at high speeds. Additionally, cranking issues with starting the vehicle.

Engine is knocking very bad. Gm dealer says it is an issue w/ the piston main bearing and the engine needs to be replaced. Says vehicle should not be driven.

The contact owns a 2021 Chevrolet Silverado 1500. While the contact's wife was driving at an undisclosed speed, the engine seized. The low engine power warning light was illuminated. The vehicle was towed to the dealer, where it was diagnosed with engine failure. The contact was informed that the engine failure was the result of no oil in the vehicle. The contact was informed that there was no oil on the dipstick when checked. The contact stated that the failure had occurred shortly after an oil change was performed on September 9, 2025, at walmart. In addition, the contact stated that there was no evidence of an oil leak. The contact was informed that the engine needed to be replaced. The vehicle was repaired. The contact referenced an unknown recall with a similar failure description; however, the VIN was not associated. The manufacturer was not made aware of the failure. The failure mileage was approximately 62,248.

Started with a clicking noise that mechanic thought it was the fuel pump but found out later it was the bearing is the rocker arms that failed and ruined the camshaft. Now it needs a new engine.

I was driving on big highway when I lost power brake light came on engine light on message about emergency brake need it serviced I was only able to go about 15 mph on big highway very dangerous engine sounds knocking was very loud at this point I knew something very bad happen my truck only had about 85k miles on it I took to the dealership to get a diagnose they took my oil filter off and found metal debris on it and told me I need a new engine I has to know what made this engine fail but they just told me a internal part fail well I was not happy with that answer knowing that some model truck with the v8 engine where having problems with valve body’s my truck is 4 cylinder turbo 2. 7. My truck is out of warranty I call gm and told them what happen and they call me back after speak to the dealership and offer to pay 30% of total cost to replace engine I was quoted $10,400. 000 for the engine replacement the dealership was shock that gm was willing to pay for something out of warranty I just wanted to have this on record it seems very wrong that a truck with so low miles with need a engine replacement out of nowhere broke down on highway put me and other at risk my truck as been at the dealership from the day it happen and I’m still waiting on a engine they are telling me they are out of stock over a month still waiting.

My belief is a valve rotated and the cam shaft has defligrated to the point that the engine casing has been pierced. Chevrolet is saying I am not covered by the recall for my 2021 Chevrolet Silverado 1500.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while her husband was driving approximately 60 mph, the vehicle started shaking and lost motive power. The contact stated that the check engine warning light was illuminated. The driver was able to drive the vehicle back to the residence at a reduced speed. The vehicle was then driven to a local dealer to be diagnosed. The dealer diagnosed the vehicle and determined that the engine control module and sensors needed to be replaced. The vehicle was repaired. The vehicle was retrieved; however, while driving off the lot, the check engine warning light illuminated, and the vehicle started shaking violently. The vehicle was with the dealer. The dealer then diagnosed the vehicle and determined that two of the lifters in the engine needed to be replaced. The vehicle was not repaired. The contact researched online and related the failure to NHTSA campaign number: 25v274000 (engine and engine cooling); however, the VIN was not included in the recall. The manufacturer was informed of the failure and confirmed that the VIN was not included in the recall. The contact was referred to the NHTSA hotline to report the failure. The failure mileage was approximately 70,000.

While driving at anywhere from 18–25 mph or 70–85 mph, my speedometer starts going crazy, the engine accelerates or decelerates, the speedometer shows random numbers, and you can hear and feel that the motor power feels different. Not all the times but is started to show more often.

2021 chevy silverado engine was under the 6. 2 recall on sept 4 2025. The engine blew and the truck was taken to local Chevrolet dealer. It had 38k miles on it. It stillf ell under the original powertrain warranty and the recall. Dealer informed me new engine was needed and ordered. It has been 2 months and the engine has not shipped from gm. 60 days is more than adequate time for this issue to be resolved. Gm has made no attempts to make this right. Please help.

I am filing a formal complaint regarding a serious safety concern with my 2021 Chevrolet silverado, following the completion of recall n252494001 performed by galleria Chevrolet in dallas, TX. Prior to this recall work and related inspections, my vehicle operated without any abnormal engine noise. After the recall inspection and a subsequent fuel injector repair performed by the dealer, my vehicle began producing a bottom-end engine noise that had never been present before, and ultimately we have catastrophic engine failure. What is highly concerning is that the dealership staff previously documented the situation in writing as follows: “we performed the recall inspection and the truck passed. After performing an injector repair now there is a bottom-end noise when it's running. Did the failed injector possibly affect the validity of the test? that may be the case. We know that the truck did not experience the noise before the inspection; is it possible that the steps we took affected the truck in a way that got the noise to show itself? that’s what we need to determine. ” despite this acknowledgment, the dealership is now denying any responsibility, classifying the damage as unrelated “wear and tear”. This reversal appears highly suspicious, as it contradicts their own observations and written notes. It suggests that the dealership and gm may be refusing to fulfill their obligations under the recall and repair warranty, leaving me with a vehicle that has a blown engine and a significant safety risk. Given the timing of the noise, occurring directly after recall work and injector repair, and the internal documentation from the dealership itself, I request NHTSA investigate whether: this issue is part of a broader trend affecting other vehicles under the same recall. Gm and its dealers are properly honoring their obligations to fully repair vehicles impacted by recalls. Consequential damage resulting from recall work is being systematically denied coverage.

Truck has under 45k miles on it. After reaching 35-40mph, it began to shake and jolt. Once we drove approximately 20miles, the engine light began flashing, in addition to the parking break light turning on. The truck began to lose power and we were forced to pull over on the side of a busy road. After waiting a little bit, we were able to drive it to our local shop who advised us to tow it back the the dealership for repairs.