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

While traveling in bumper to bumper highway traffic in my 2022 Chevrolet silverado rst, I attempted to accelerate and the vehicle suddenly malfunctioned. I experienced sever loss/restriction of propulsion and the vehicle would not respond normally to accelerator input. I was able to maneuver toward the shoulder of the road while avoiding a major multi-car pile up involving innocent motorists. When I attempted to stop, I did not have normal braking ability and was unable to stop in the manner I expected. I had to use the shoulder of the highway to slow the truck down until I could come to a complete stop. This created an immediate risk of serious or fatal collision on the highway, and as I maneuvered the truck out of traffic to the side of the road. Had I been unable to reach the shoulder of the road, I could have been struck by surrounding traffic. Had this failure occured un an urban area or at an intersection, near pedestrians, or at a school bus stop- I could have seriously injured or killed people or myself. After I was able to come to a complete stop. I shut it off and turned it back on, then the truck read there was no gas left (I had a 1/2 tank). This incident is not isolated electronic glitch, I have experienced electrical malfunctions including the truck failing to start, unlocking, responding at all. This all occured after an engine replacement due to a recall. I am concerned that there are unresolved electrical and power-distribution, communication-network, propulsion or braking issues that presents a serious safety risk to myself and others. My concern is that if this malfunction occurred on my drive to work in the city, around pedestrians- it could have resulted in multiple fatalities.

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The motor seized. My life was at risk. I was on the highway. The vehicle was reported to the chevy dealership and diagnose that the motor is locked.

The vehicle previously received the official gm recall campaign 25v-274 remedy/inspection, but suffered catastrophic engine failure and sudden loss of propulsion afterwards.

Dfn failure cylinder 6 140,000 mi oil changes done at 20% using nothing but mobile one full synthetic 0w 20.

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Currently had my engine go into "limp mode" after checked engine light came on with code p1010. The coolant control valve is what is the problem, and gm/chevy has issued a special coverage on this known part for my year make and model (bulletin n252508341). However, according to the dealership, my VIN does not qualify for this known issue, regardless of my faulty part matching the special coverage for the year make and model of my vehicle. Now I'm stuck paying for the empty promise from chevy.

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The contact owns a 2019 Chevrolet Silverado 1500. The contact stated that while driving approximately 45 mph and attempting to accelerate to 55 mph, the engine started choking, and the vehicle lunged back and forth, and slowly lost drive power. The vehicle was driven to a local certified mechanic while driving at slower speeds. The certified mechanic diagnosed the vehicle and determined that the active fuel management (afm) and dynamic fuel management (dfm) systems had failed and caused the engine failure. The vehicle was not repaired. The mechanic informed the contact that Chevrolet vehicles with similar engines were known for engine failure. The manufacturer was not informed of the issue. The failure mileage was approximately 119,000.

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The contact owns a 2024 Chevrolet Silverado 1500. The contact stated that while driving 45 mph uphill with a boat hitched on a trailer, while depressing the accelerator pedal, the engine overheated and the vehicle was pulled over and the idol warning message was displayed. The contact pulled over to the right side of the road, however the vehicle lost power with the boat trailer wheel still on the highway. A dealer was contacted. The vehicle was towed to the dealer and was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and opened a case. The failure mileage was 21,000.

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I was making a sharp turn going about 6 miles an hour. The vehicle suddenly stalled and shifted to neutral. A message appeared on the dash stating, “please restart vehicle. ” the vehicle restarted without issue and no error codes were displayed.

Unknown which system failed. While driving on the freeway, truck lost power for a few seconds. Dash lights turned off and back on. Our safety and the safety of others on the freeway were at risk as we had no control of the vehicle. Have not had the truck checked for the problem. Scared to drive it. No warnings appeared.

Component/system failed: the 6. 2l l87 engine. The engine ultimately seized and the vehicle became inoperable. The engine should be available for inspection because it is being replaced under gm special coverage n252494003. Safety risk: the engine unexpectedly shut off while driving at highway speeds. Loss of propulsion in traffic creates a significant collision risk. The inability to restart left the vehicle disabled. Confirmed: an independent repair facility confirmed that the engine was seized prior to towing it to the gm dealer. Yesterday the gm dealer confirmed I had a seized engine and it was going to be replacement under n252494003 special coverage entention. Inspections: my truck was inspected in October 25, for the recall. My truck passed this test, and was subsequently was told my oil spec has been revised. Warnings/symptoms: no warning was given.

I just purchased this vehicle on xxx and on xxx, with less than 300 miles on it, we were in a parking garage at the galleria mall in [xxx]. While driving slowly uphill in the garage looking for a parking space, the vehicle suddenly went into neutral and the engine shutoff. After verifying all was well, I restarted the truck and continued to drive. It happened two more times with the same situation, low speed going uphill. I have not taken it to a chevy dealer yet for diagnostic as there were no lights like the check engine light and no codes presented. My onstar app reports that all is well and no issues, so I know it will not be something they can find when they try to pull the codes. I did a search on the internet for this issue and found others with the same problem, no known fix, and in one case the person was able to return the truck and they purchased a different truck from a different manufacturer. That gentleman said he did try to work with gm at the regional level with a service rep. He said something is causing the voltage to drop in lower gears, causing it to invoke a safety feature to stop the vehicle by going into neutral and shutting off the engine. On an incline, with no engine, the brakes become very hard to push and the vehicle could roll back. In a parking garage, that could mean rolling back into a person or another car. When it happens there are in internal codes that do not show up, but are wiped when you re-start. There are threads on reddit and in facebook groups that discuss this issue as well for further evidence. My purpose is to get this documented outside of gm, it seems like a niche problem, but one that could be dangerous in the right circumstances. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Had the motor replaced under recall / warranty at a certified chevy dealer. ~41k miles. 6. 2l l87. Graff chevy of chesterton indiana. After long lead times and getting the run around, the truck was "done". Picked it up and many things were still wrong/incorrect. They were able to take care of it. A day later, the truck died in the road. Towed to another graff dealer. 2 days later it was found to be a bad ground. Fixed. Fast forward ~3k miles later. The transmission went out and locked up on a main roadway. Towed to another dealer (west herr chevy orchard park NY). They found the root cause was due to transmission cooler lines coming loose from faulty installation during motor swap. There were also many other items found that were broken or loose under the hood of the vehicle from faulty workmanship. I am being told it is not covered under warranty because of the previous dealer's workmanship (graff indiana) I was able to get the truck put of the roadway and to a safe place, but this very well could've caused an accident, and I would like to document it.

I have a 2022 silverado ltd with the 6. 2. I purchased the truck about a month and a half ago the previous owner had the 40 weight oil recall completed prior to my purchase. I had the oil changed when it said 45 percent life remaining far before it was due a certified chevy dealer completed the oil change with the 40 weight correct oil. Well about 8 days ago I went out and started the truck and heard a clunk sound like a failing starter would make. So later that day I notice a ticking noise as well as a chirping noise. Coming from engine bay. I made note of it. Ever since the noise began I have kept close eyes on it the ticking and chirping rise and fall when I give it gas. Yesterday when I started it the clunk noise happened but this time I felt a shudder or stutter I looked at the rpms and they didn't move at all with the shudder. I have an appointment Monday morning to take it to the dealer I looked into the recall for the thicker oil. And learned that this motor is pretty much junk and multiple issues I haven't driven it since yesterday because the issues I'm having correspond with complete engine failure at any point and I do not want to be on the highway and it happen that would put me and other motorist at risk injury. There has been no warning lights no engine light just the initial clunk the first time and since that it's just been getting worse.

Engine failed 6k miles after inspection and oil type changed to 0w40 from gm dealer roger dean chevy cape coral FL.

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I was driving my 2019 chevy silverado trailboss with 81,000 miles at 65mph on I-80 east in omaha, ne, when 3 warning lights came on. The first was the service parking brake. The second was service esc. The final was a flashing check engine light. My truck started backfiring/misfiring, making a loud ticking noise, and running extremely rough. I was trying to merge off the interstate, but it was running so rough that it made it very difficult to do so safely. Eventually, I just had to finish going where I was headed and park it in the lot. I did some research and called my local shop. They said to stop driving immediately and have it towed to them for inspection. They used a diagnostic tool and diagnosed the issue as a dfm lifter failure. But they could not fix it there and recommended I take it to a different shop. I had it towed again, and they did their own diagnostics and have the same idea, but without taking the engine completely apart, they can't tell for sure. They want to charge me $1,250. 00 to inspect it further. I called the dealer where I purchased the truck back in 2019 and am working with them on next steps. The last shop quoted me $7,800 repair if it is indeed the dfm lifters. Based on what I know, this is a known issue with these trucks. Gm has an "out of warranty policy assistance" in place just for these know lifter issues. This is very concerning that gm hasn't done a recall on these parts as it has shown to be a safety issue when driving the vehicle in traffic on the interstate. I just hope that gm assists me with the repair costs because it is not guaranteed and I cannot afford $7,800 right now.

I purchased a 2026 Chevrolet 1500 duramax deisel truck. At 9500 miles the truck started making popping and loud grinding noises and would shake while driving it. I barely made it to the dealership on August 6th 2026 I took it to group 1 Chevrolet where I bought it in houston,texas and on August 8th was told that they need to replace the engine and do not have an estimated time for repair.

6. 2 liter vehicle engine failure while moving on interstate April 1, 2026 … (I responded to first recall notice and hendrick Chevrolet of naples, FL. Completed inspection and oil replacement in 2025) … engine replaced by estero bay Chevrolet June 2026 at 72,495 miles on odometer … engine failure (76,004 miles on odometer) while moving August 6, 2026 towed to hendrick Chevrolet (naples, FL. ) … hendrick Chevrolet refused to repair noting engine replacement required … vehicle towed to estero bay Chevrolet (estero, florida) and engine replacement confirmed again … my complaint includes estero bay ordered replacement engine and confirms same 6. 2 liter engine to be installed in my truck (3rd engine for truck) suggesting same engine subject of recall to be installed will fail again while underway/moving endangering me and family … first incident April 1, 2026 second incident August 6, 2026.

The engine in my 2026 Chevrolet silverado zr2 with the 6. 2l v8 had a catastrophic failure. While I was driving, the engine suddenly shut off and seized without any warning. The dealer told me they found metal in the engine oil and oil filter and that the engine needs to be replaced. They also informed me the replacement engine is on back order for more than five weeks. The truck is available for inspection. How was your safety or the safety of others put at risk? my truck lost all power while I was driving, which put me and other drivers at risk because it happened without warning. Has the problem been reproduced or confirmed by a dealer or independent service center? yes. The dealer inspected the truck and confirmed the engine had an internal failure. They found metal in the engine oil and oil filter and said the engine must be replaced. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives, or others? the truck has been inspected by the dealer. Were there any warning lamps, messages, or other symptoms of the problem prior to the failure, and when did they first appear? no. There were no warning lights, messages, or other signs of a problem before the engine failed.

I was driving down the road and all of a sudden the check engine light came on, the check the parking brake light came on, and the service electronic stability control system light came on. The engine then started making a knocking sound. These trucks have a known lifter issue. I had a 2021 that had the same problem. It was still under warranty so I was able to get out from under it. This one isn’t and they want $9,000 to replace the engine. There is a recall on the 6. 2 liter but not for the 5. 3 liter for some reason. These engines have an issue.

2026 chevy silverado high country with 13,193 miles 6. 2 engine locked up on 7/29/26 and is currently at my dealer waiting on engine replacment. Gm has not fixed the 6. 2 liter engine failure issue's!.

The contact owns a 2022 Chevrolet Silverado 1500. The contact stated that while driving approximately 30 mph and towing a trailer on route 16 with his children inside the vehicle, within 10 minutes of driving, there was smoke coming from underneath the vehicle and entering the cabin. There were no warning lights illuminated. The driver pulled over safely. Additionally, the contact stated that there was no issue prior to the failure. First responders arrived on the scene but were unable to use fire extinguishers to contain the fire. The contact called 9-1-1. Within approximately 10 minutes, the vehicle was fully engulfed in flames, which reached an estimated height of 10 feet. A police report and a fire department report were filed. The driver and his two children sustained smoke inhalation. The contact's daughter was vomiting; however, medical attention was not provided. The contact stated that a nearby vehicle and the trailer were damaged from the fire. The vehicle was towed to a tow yard. The local dealer was contacted, but the vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and opened a case. The failure mileage was approximately 67,000.

While driving at ~50mph, the truck immediately went into reduced power mode, temperatures spiked to 260 from 210. Engine code p1006 showed indicating coolant control valve failure. After experiencing, I discovered that gm issued special coverage for coolant control valve (n252508341). However, the local chevy dealership indicated my truck would not be covered even though it is within the timeframe/mileage, and falls in the year/make/model categories. According to them, the coverage is VIN specific and my VIN is not listed. They directed me to Chevrolet customer care. Customer care did not acknowledge the special coverage until I directed them to the correct bulletin. They further indicated because my VIN was not covered, they would not be able to do anything. This issue is highly known by gm, but they have failed to remedy appropriately. It is also a safety hazard, especially in my case, where the failure occurred on the highway, at speed with cars behind me, and resulted in the truck immediately ceasing normal operation causing the potential for property damage and/or injury.

While driving 65mph on the highway the engine locked up and shut down. There was a loss of propulsion and steering making it difficult to safely maneuver off the highway.

The contact owns a 2024 Chevrolet Silverado 1500. The contact stated that while driving approximately 45 mph, the transmission upshifted as intended; however, the vehicle then suddenly downshifted to a lower gear. No warning light was illuminated. In addition, the contact stated that the failure worsened and jolted the occupants inside the vehicle. The vehicle was taken to a local dealer where it was diagnosed; however, no cause for the failure was found. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 47,278.

The engine (6. 2 liter) on my Chevrolet silverado fail with less than 2335 miles. It was confirmed my the Chevrolet dealership(hendricks Chevrolet ). No warning lamps appeared in the dash or warning from my onstar maintenance notification.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the vehicle came to a complete stop without warning. The contact stated that the failure had occurred twice. During the first failure, the vehicle was towed to the dealer and a lifter inside the engine was replaced. The contact stated that after the second failure, the contact allowed the vehicle to sit for a while before restarting the vehicle and continued driving. The vehicle was driven to the dealer, where it was diagnosed and determined that a lifter and the camshaft needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 73,000.

2021 chevy silverado 5. 3 trail boss lifters has failed on this driver two times while driving on highway engine lost power with my family in the vehicle. Dealer warranty fixed lifter the first time lifter went out at 1100 miles. The vehicle has failed again with multiple lifters going out and camshaft needing being replaced also on my extended warranty at 73000 miles. I do not want to take this vehicle back in my possession as it has put me and my family at risk twice being stuck on highway with no power.

Engine sudden loss of propulsion while driving on interstate w/out warning. Pulled to side and check engine light and hot oil warning came on prior to engine dying. Had to call tow and dealer says engine needs to be replaced but they won’t ship vehicle back after repair and it’s 4 hours from my house, that I need to pick it up.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while his wife was driving approximately 65 mph, the vehicle lost power and stalled. The vehicle failed to restart. The vehicle was towed to a dealer where it was diagnosed with an internal engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 120,000.

I have been having issues with my vehicle for the last 1,000 miles or so where it appears to be losing power while accelerating normally, I'm not sure if the issue lies with the engine or powertrain/transmission. I took to dealer last week and they were unable to reproduce. The issues have been getting more frequent and intially were only occuring after the vehicle warmed up, now it has started while vehicle is cold. Feels like the power drops (rpms drop) during a normal acceleration. As of 7/16 I now have a check engine light on, onstar indicates an issue with my engine, transmission, electrical. This is putting myself at safety risk along with others as during my normal drive the engine is losing power and could either leave me stranded or cause an accident.

I have a 2021 silverado with the 6. 2l engine. I had received the recall notice, but it took several months before I could get the truck checked. By the time I was able to get it inspected, the truck had over 100,00 miles, with the symptoms associated with the 6. 2l engine failure. It was said to have passed inspection, but I had my doubts. Low and behold, my engine failed not once but twice. The first time I was told it was not due to the recall and paid out of pocket. The most recent failure, (same exact failure as before, and nearly caused an accident) happened last week. I towed it to a different dealership than where it was inspected and where the last repair occurred, and was told it needed a new engine. I called and was told by the dealership that a new engine was ordered, and they were waiting to hear back from gm on if they would cover it or not. I was also told they were very confident gm would cover it, and that is why they ordered a new engine. A few days later, I get a call and find out gm is in fact not covering it and the repair is around $12,000. I am beyond frustrated at gm for not taking accountability, and the dealership for giving me false hope that this would be covered.

The coolant control valve (dtc code p1098) is failing and only certain trucks are covered under gms special coverage, being as this is a common issues why aren't all the trucks covered.

On Sunday, July 12, 2026, the 6. 2l v8 (l87) engine in my 2023 Chevrolet Silverado 1500 zr2 seized and locked up completely, resulting in total loss of propulsion. I was driving at 65 mph when it felt like the transmission was slipping and I lost power and coasted the truck to the side of the road. Component: engine (6. 2l v8, rpo l87) — connecting rod/crankshaft failure consistent with safety recall n252494001 (NHTSA recall 25v-274). The vehicle is available for inspection. It is currently at cable dahmer Chevrolet, where it was towed on July 13, 2026, and remains inoperable. Safety risk: the engine seized during operation, causing sudden and complete loss of propulsion in traffic. This is the exact failure mode identified in recall 25v-274 as increasing the risk of a crash. Critical detail: this vehicle previously underwent inspection under safety recall n252494001 and passed on Feb 3rd 2026 at van Chevrolet in kansas city. Gm deemed the engine non-defective and issued extended warranty coverage of 10 years/150,000 miles under the associated special coverage program. Despite passing gm's recall inspection, the engine suffered catastrophic failure. This appears directly relevant to NHTSA's open recall query regarding the effectiveness of gm's recall remedy. Dealer confirmation: a technician at cable dahmer Chevrolet has verbally confirmed the engine is locked up/seized. Formal diagnosis is pending master technician sign-off and submission to gm, expected the week of July 20, 2026. The manufacturer has not yet inspected the vehicle. Warning signs: no warning lamps, messages, or symptoms appeared prior to the failure. The engine failed without warning.

An engine lifter broke in my 2021 chevy Silverado 1500 (6. 2 liter) and it bent a push rod. The truck was towed to the dealership where it was purchased. They replace all the lifters on the failed side and the bent push rod. The reason I am reporting this is because it happened at a very unfortunate time and could have resulted in a major accident if the engine would have seized. I was turning a corner, crossing oncoming highway traffic, and pulling our camper/travel trailer. I see that it has been a relatively common problem with the gm 6. 2l and even some 5. 3l motors and appears to be related to gm's active fuel management (afm).

Afm/dod lifter failed while driving which causes multiple systems to go offline including traction control, stability control, abs just to name a few. This happened while coming off freeway which can be a safety risk as vehicle was at higher speeds. This is a known gm problem with 5. 3l engines and should have been addressed years ago.

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