Engine And Engine Cooling Problems of Chevrolet Silverado 1500 - part 1

I was driving on I-35 in norman, oklahoma, shortly after 7 am, when my 2020 chevy trail boss with the 6. 2 engine stopped running. I was in moderate traffic and shifted the gear shifter to neutral, and the motor would not restart, leaving me in traffic. I was able to slowly get on teh shoulder to avoid a collision, and the engine would not restart. I had teh vehicle towed to ammco in norman, oklahoma, where it was determined that a catastrophic engine failure occurred. This is teh same problems that are associated with recalls on the 2021 and up 6. 2 gm engine. Luckly I was able to get to a safe place and avoid a collision.

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Engine oil cooler line leaking from crimp. Same issue csp n212326940 gm distributed but my truck was not covered for some reason.

See all problems of the 2019 Chevrolet Silverado 1500 🔎.

The defective manufacturer lifters on my 2020 Chevrolet Silverado 1500 went on my truck damaging the lifters, camshaft, oil pump and I'm sure more than that. I know it's an ongoing investigation/lawsuit with general motors, but they need to held accountable and should fix this issue free of charge. Not everyone has $5k-$10k+ to repair their engine due to their negligence. Thank you.

Hello, I purchased this truck new in November of 2025. Around 1500 miles and a few months later the truck developed what sounds like some sort of belt squeak or chirp upon startup, light acceleration and when the engine auto start/stops. I took it to my local dealer and they told me they “lubed the belt” the noise became faint but still didn’t go away. Around 3k miles the noise is back as loud as it was. Back to the dealer, a new serpentine belt the noise is again quieter but still exists. This needs to be addressed many people online are dealing with this and the dealer is giving us the run around trying to say it’s normal for a brand new $70,000 dollar truck to squeak and chirp!.

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The contact owns a 2022 Chevrolet Silverado 1500. The contact stated while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure. The contact was advised to contact the NHTSA hotline and report the failure. The failure mileage was approximately 28,000.

See all problems of the 2022 Chevrolet Silverado 1500 🔎.

Chevrolet dealership diagnosed my truck and said the coolant control valve would have to be replaced.

Vehicle had died before and was brought to dealer but was restartrd, no problem could be found. Two weeks later, engine locked up on a 70mph highway. With children and wife in vehicle. Could not restart. Had to be towed to dealer. No previous lights or warnings before engine locking up.

See all problems of the 2024 Chevrolet Silverado 1500 🔎.

Engine failed on 5/8/26 with 1794 miles. Sounds like possible main bearing failure, engine had 18psi oil pressure. Signs were, knocking, banging, screeching/squealing internally from engine. No codes or check engine lights appeared. Was driving approximately 35-40 mph on mountainous paved road. Managed to limp truck to safe pull off area and turned off engine. Had truck towed to dealership. If truck would have died on road I was driving on, it could have been bad. Road is very narrow with numerous blind spots.

While driving home from my way to work, an esc sensor alert went off on the dashboard display. My truck was sent into limp mode, could not accelerate anymore and as soon as I pulled off onto the side of the road the truck died. I was never able to start the truck again. Determined it was an engine lock up when I tried to turn the crankshaft by hand.

Own a 2019 Chevrolet Silverado 1500 with approximately 76,896 miles. The vehicle experienced sudden coolant loss and overheating while driving and became disabled to the point it would not restart. The vehicle required towing to a repair facility. The symptoms appear substantially similar to known gm cooling system/oil cooler line issues addressed in other silverado programs and complaints, however my VIN is excluded from coverage. I am requesting review for goodwill assistance and escalation due to the nature of the failure, the maintenance history of the vehicle, and the safety concern created by sudden overheating and loss of power.

Purchased truck in may of 2026 from chevy dealer. Truck had around 1500 miles on it. Within 1 week the truck was shifting, very roughly, for no apparent reason making it lurch. I brought it to a local chevy dealer, who ran it, showing a fault. I got the truck back from the dealer, who said tech had looked at it, and cleared the "fault" that was showing up. Less than 1 week after that, the truck started doing the same thing, and I am bringing it back to the local chevy dealer this week. The dealer I purchased the truck from said it was a trade in because the owner didn't like the truck. I'm concerned the dealer I bought the truck from may have known about the problem when I purchased the truck, and this may be the 3rd time that the truck has been back to a chevy dealer for this problem. I looked on line and found chevy has has hundreds of thousands of recalls on this 6. 2 liter l87 engine, and there is a class action suit involving this engine from previous years, as well as hundreds of complaints regarding the 2026 version of this engine.

This truck has a recall on it but by specific VIN numbers mine doesn’t fall into the VIN number but had the same catastrophic oil cooler line failure, which is in the recall which caused the engine tool expire with 40,000 miles on it. Truck is like brand new general motors will not honor the warranty even though it’s the failure that’s in the warranty makes no sense.

I was accelerating to onto the freeway to merge and my engine suddenly made a loud noise and my vehicle immediately lost power and the dashboard alert lights began going off to service engine. I was able to get to the edge of the highway and make it to the next exit to slowly make my way back to my office to have my vehicle towed to a garage. Luckily I had not fully merged into traffic when my vehicle suddenly slowed. There was heavy semi-truck traffic which they would not have been able to avoid rear ending me. The garage confirmed that a cylinder blew causing the drastic drop in power and speed. It has since been towed to the dealership to have their service team diagnose the issue after my usual independent mechanic had found the problem.

While returning from a camping trip my engine lost power. Luckily I was close to an exit and managed to get it off the expressway and to a parking lot. I was able to leave the camper in the lot and have the truck towed to a dealer 30 miles away. I was informed by the dealer that the engine had sustained major berring failure. I was over 500 miles from home and I had 2 options, wait 2 weeks for a new engine to be installed or trade it in for a new truck. I opted for the trade in because I didn't want to wait 2 weeks. I figure I lost $7000 in trade in value and had to spend $2000 to have my new truck fitted for a 5th wheel hitch.

Valve cover leak, known issue by gm, TSB 22-na-027, refusing to warranty known problems & charge the customer $4,000 in repairs.

See all problems of the 2021 Chevrolet Silverado 1500 🔎.

I was driving home from work, and dash warning sign came on and told me to start engine. I was currently driving at approximately 60 mph. When I came to blinking red light I went to accelerate and truck was unresponsive. It would not accelerate and engine was off. I went to start engine and it just cranked with no start. I used onstar to get a tow truck. I was broken down in the middle of an intersection and had to wave traffic around me for 1hr 45 min. Finally tow truck came and took truck to local chevy dealership. Upon inspection they stated that it needs a new engine. I had the truck in the Chevrolet dealership in Feb 2026 to have the 6. 2 recall done, they performed the full recall and said everything looks good. Truck has approximately 60k miles on it. It failed a few months after inspection. They stated they have ordered a new engine and it would be approximately 4-6weeks minimum. Truck is sitting at the dealership.

While driving on the freeway, the truck suddenly displayed a flashing check engine light along with multiple warning/error messages. I was able to limp the vehicle to the nearest mechanic, where they inspected it and confirmed catastrophic internal engine failure. Upon removing the oil pan, they found large copper-colored metal chunks and metallic glitter throughout the engine oil, indicating severe internal bearing/component failure. The vehicle is no longer safe to operate and now requires major engine repair or replacement.

My vehicle has 3416 miles on it. I was at a stop light, busy intersection, and it just died. It would not restart or go into neutral to push it to the side of the road. I had it towed to the dealership, and found out theres a bulletin on these motors. [xxx] . Why would I buy something when its been a know issue with the manufacturer since 2025. I feel as if the manufacturer is selling these units and once this happens its the consumers loss. I cannot believe the manufacturer has not issued a recall. If that were too happens there would be a lot of lemon laws and there lawyers know not to go down that road. There fix is to give me a refurbished engine!! how can that be constitutional knowing there's been a problem with this engine and now my resale value just went down. If I knew what I know now I would of purchased used because thats what im getting in return which is consumer robbery. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

On Tuesday April 28 while I was driving the engine suddenly started making a strange noise and the engine died. It would not restart. I had it towed to the dealer and was told the cam shaft “spun” and destroyed the engine. I am now having to replace the engine at a cost of $11,000!.

On 4/27/26, my family and I were traveling south on colorado c470 at 8 am. Our 2021 chevy Silverado 1500 had catastrophic engine failure at highway speed as we were passing an 18 wheeler. The failure caused the vehicle to lose power and engine, and the display said to put the truck in neutral and restart the engine. After coasting to the shoulder, the engine would not restart. We were stranded on the highway during rush hour for an hour and 1/2 waiting for a tow truck. This scenario is identical to the safety risks outlined in NHTSA recall 25v274 (and investigation pe 24-007). This failure resulted in the intake manifold being physically displaced and damage to the timing assembly. The dealership is attempting to deny coverage by claiming the "upper gallery" damage (timing/intake) is unrelated to the "lower end" issues covered under the special coverage/recall [ this is a dealer quote]. This logic is technically flawed: consequential damage: a catastrophic lower-end failure (e. G. , a broken connecting rod or seized crankshaft bearing) at 80 mph creates the massive internal pressure required to shatter or "blow off" a plastic intake manifold. Timing linkage: the timing chain is physically connected to the crankshaft. It is mechanically impossible to have a catastrophic crankshaft failure at high rpms without causing secondary damage to the timing gears and "upper gallery". Recall precedence: my vehicle exhibits the exact failure mode—loss of motive power due to bearing failure—currently being investigated by the NHTSA for 2019-2024 l87 engines.

The afm code p3400 was activated on the truck and the lifters went bad and caused damage to the cam shift. Lifter failure which caused fuel to shoot down exhaust and burned out the catalytic converters. Dealership wants 10k to fix not including the catalytic converters.

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I have a 2019 Chevrolet high country, have always kept it serviced and maintained. Driving down the road it randomly lost power, wouldn't let me (driver) give gas, started shaking and making loud clanking noise from the engine. Was able to pull over to the side of the road, recorded the noise it was making. Called a tow company to get it towed to the nearest Chevrolet dealer ship and they confirmed that the engine was no longer good. Related problem to the 6. 2l motor issues. They are requested for a new motor.

While operating my vehicle under normal driving conditions, I experienced a sudden and complete loss of engine power without warning. The engine shut off abruptly in active traffic, creating an immediate safety hazard and increasing the risk of a collision for myself and surrounding motorists. Following the stall, the vehicle would not restart. The engine cranks but does not start (a “dry crank” condition). There were no prior warnings, indicators, or drivability issues suggesting an impending failure. This vehicle is equipped with the l87 6. 2l v8 engine, which is subject to a known recall involving internal engine defects that may result in sudden failure. The symptoms and failure mode observed are consistent with reported cases of internal engine damage, including potential bearing or rotating assembly failure. At the direction of gm and the dealership, the vehicle was previously brought in for recall inspection. The recall was subsequently marked as completed. However, I am now being advised that the recall cannot be reopened and that I am responsible for the repair costs. A completed recall inspection does not eliminate manufacturer responsibility when the underlying defect later results in failure. I understand there is an ongoing and recently reopened NHTSA investigation into gm’s “pico test” inspection process, as multiple engines have reportedly failed after passing this procedure. Given that this failure occurred after the recall inspection was completed, this incident raises concerns regarding the adequacy and effectiveness of the prescribed remedy. This event represents a serious safety issue due to the sudden loss of power in traffic without warning. I am submitting this complaint to document the failure and to request further review of the recall remedy and associated inspection process.

I completed the n252494003 recall inspection on my 2021 chevy Silverado 1500 6. 2l at carl black Buick/chevy/GMC in roswell, GA. They said my crankshaft was not one of the vehicles affected and sent me on my way with my free oil change as a remedy to the issue. I subsequently used that information, thinking the “bottom assembly” of my motor was good and not impaired, and proceeded to have the dod/dfm deleted from the motor because it was a known fail point and this work cost me $7,000. Maybe 6 months after my inspection for the recall, I begin to hear a noise and I take it to the same dealership for service and they tell me the crankshaft is faulty. Nothing about the dod/dfm delete and subsequent ecm tune had any impact on the crankshaft and yet, the dealership is denying fault when it was there service department hid the truth of the engine during the inspection. The warranty for the crankshaft is no longer applicable because of the modifications I did, but had they been honest about the faulty crankshaft, I would’ve never done that work to it in the first place. The engine should’ve been flagged during inspection and replaced.

: experienced engine failure. : as of now, vehicle is at the dealership since ( April, 24 2026 ) dealership - sunshine Chevrolet - arden nc 28704 ( vehicle is available for inspection ) : I was on my way to work on interstate 26, near asheville nc when I noticed sudden shaking and loss of power. I had to immediately get the vehicle into slower lane of traffic, before exiting the interstate. : problem has been confirmed by the dealer : yes > warning lights did appear. ( service engine ) also ( oil pressure warning light ).

This was a 6. 2l v8 that is actively under investigation and recall for model years 2021-2024. It is a part of the same gm generation of engines 4th generation, gmt t1xx. I was not told about the active recall for other members of the generation by the dealership in which I purchased it at in August of 2025. I purchased this vehicle less than a year ago and the engine has now suffered a catastrophic failure consistent with known 6. 2l issues.

The contact owns a 2012 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed and stopping at a stop light, the accelerator pedal was depressed, and the accelerator pedal became stuck, and the engine unexpectedly revved to 5,000 rpm. The contact stated that the accelerator pedal failed to release. The brake pedal was depressed several times within 15 seconds, and the engine stopped revving. No warning lights were illuminated. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 146,250.

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I am reporting a safety defect involving a gm 6. 2l l87 engine. My vehicle was included in the gm recall related to engine failure (loss of propulsion). The recall remedy was performed, and the engine was replaced under recall/warranty in August 2025. After the recall repair and engine replacement, the vehicle experienced a second catastrophic engine failure, on April 21st. The engine failed again while on a highway, resulting in loss of vehicle function and leaving me stranded. This occurred after the manufacturer had already attempted to remedy the defect. The vehicle has now been out of service for an extended period (approximately 2. 5 months total across both events - and ongoing), and I am continuing to make payments on a vehicle that is not operable. This appears to be a failure of the recall remedy itself, not just the original defect. I am concerned this represents a broader safety issue involving post-recall failures of the l87 engine, as currently under investigation. I am requesting that this incident be included in the ongoing federal investigation into gm 6. 2l engine failures.

The contact owns a 2022 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the vehicle experienced catastrophic engine failure. The vehicle was repaired; however, the failure reoccurred. Before the most recent failure, the contact heard an abnormally loud clicking sound coming from the engine and returned to the residence. The vehicle was driven to the dealer to be diagnosed. The vehicle was diagnosed with engine lifter failure. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 146,000.

I have a 2019 Chevrolet trialboss with a 5. 3 l engine and the lifters went out on this vehicle! now it’s needs a new engine! and there seems to be a huge trend with this.

For the second time in my 2021 Chevrolet silverado with a 5. 3-liter engine, I've had gm lifter failure. It's directly related to the active fuel management system (afm), and was confirmed by my Chevrolet dealer's mechanic and service writer, burdick Chevrolet in cicero, new york, on both occasions. They've had to perform a multi-thousand-dollar lifter replacement service job. They've told me that gm is aware of the safety issues, but won't do anything about them. It also happened to me with my 2014 Chevrolet silverado, but I was lucky that time. It was fixed with new spark plugs and wires. It's cost me thousands of dollars for repairs each time. But that's not why I'm reporting this to NHTSA. The issue is safety. When the lifters fail, you get no warning. The truck rattles and rumbles. It becomes unstable on the road, and sometimes wobbles as if it's about to go out of control. The problem causes the loss of electronic stability control (esc) and renders the electronic parking brake useless. Lifter failure can also cause the engine to stall while driving, especially at a stoplight. This happened to me. I had to press the gas pedal gently to keep the engine running at a stop light just to get off the road. On the highway, when the lifters fail, the truck slows to a point where it cannot keep up with traffic. That presents a dangerous situation. It's not safe. Gm knows about it, but as far as I understand, the company has done nothing to fix the safety problem. Internet forums are full of comments about the problem, the safety issues, and the enormous cost of repairs. Surely your agency can compel gm to fix the lifter failure problem before someone suffers a major accident due to an uncontrollable vehicle. I'll never buy another vehicle with afm. Many people are unaware of the dangers involved with this system. Gm should get rid of it. [xxx] skaneateles, [xxx] [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

A lifter has failed on the driver side of the engine. Dealer is going to replace the bad lifter, but I’m worried about all the metal debris that has been put into the motor, especially after the recall for the bad crankshaft bearings that could cause it to lock up at any time. There was no warnings or check engine light if they’re just had a very bad tick all of a sudden.

While driving, the truck suddenly boggs down and gets sluggish. A message appeared once that said reduced acceleration drive with care. It is dangerous because it loses power and stalls in front of other vehicles. I took it to the dealership on Friday the 17th and they said it was the crank position sensor. They ordered the part and I took it back on Monday the 20th and they replaced the sensor. Today, while driving down the highway it did the same thing again. I will be taking it back to the dealership tomorrow. The truck has 26,000 miles on it.

The contact owns a 2019 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the vehicle lost motive power. No warning light was illuminated. The vehicle was able to be restarted immediately, but the failure persisted twice, causing the contact to wait for the vehicle to restart. The vehicle was taken to the dealer, who determined that the engine had failed and needed to be replaced. The vehicle was not repaired. The contact related the failure to NHTSA action number: ea25007 (engine, engine, and engine cooling). The manufacturer was made aware of the failure. The failure mileage was approximately 72,500.

Was driving the truck on the highway at 75mph when suddenly the motor revved up in rpm’s and vehicle lost all power. There was no warning lights or any limp mode or anything as such as far as warning. The truck lost all power and could hear metal to metal sounds and turned off the motor. I was able to coast the truck to an off ramp in 70mph traffic. The truck would not turn back on and vehicle was immobile, had to have the vehicle towed by a flatbed to a gm dealer near by. The dealer gave me a loaner pickup and hasn’t looked at my vehicle yet. I bought this pickup less then 3 weeks ago and the l87 recall and oil change had been done prior to me buying it. I was just happy that the truck didnt full shut down at that speed and cause a crash etc. Dealer said motor failure to me and couldn’t confirm a turn around time frame for my truck to get back to me.