2014 Chevrolet Silverado 1500 engine problems

ENGINE

While driving, the vehicle suddenly developed a severe, loud mechanical ticking noise from the engine compartment, immediately followed by a drastic loss of engine power and violent vehicle shaking. The vehicle experienced an active cylinder misfire caused by a failure within the Active Fuel Management (AFM) system, where a cylinder deactivation lifter collapsed and became stuck.This mechanical failure creates an extreme safety hazard. The sudden drop in throttle response, engine stuttering, and loss of power impair my ability to maintain highway speeds, merge safely, or accelerate away from oncoming traffic. The engine stumbles significantly under load, risking a rear-end collision on public roads. The vehicle remains unrepaired at this time due to the catastrophic nature of the valvetrain defect and the severe risk of complete engine seizure while in motion. General Motors has failed to issue a safety recall for this known structural valvetrain defect, which poses an immediate hazard to drivers on the road.

NHTSA complaint #11749285 — an unverified report by a vehicle owner.

ENGINE

Over the last week, my truck power has been almost shutting down after the stabilitrac warning appears on the dash while I’m turning or going over uneven pavement. The whole system shut down once already when turning around in a driveway. I have a new battery. Spark plugs are good. ABS is good. There are no recalls I can find, but this must be electrical somehow. Help me pls before it causes an accident.

NHTSA complaint #11745410 — an unverified report by a vehicle owner.

ENGINE

I own a 2015 Chevrolet Silverado equipped with a GM V8 engine that experienced significant engine failure symptoms consistent with known GM engine defect issues and related recall/service campaign concerns. Prior to failure, the vehicle began exhibiting abnormal engine noises, warning lights, performance issues, and symptoms indicating internal engine damage. The condition worsened and resulted in major engine failure requiring extensive repair or engine replacement. The failure created safety concerns due to the potential for sudden loss of power and loss of propulsion while driving. Based on the symptoms, model year, and engine configuration, I believe the failure may be related to known GM engine issues involving internal engine components, lifter failures, AFM/DOD system failures, bearing damage, or related defects that have been the subject of recalls, special coverage adjustments, technical service bulletins, or investigations affecting GM trucks and SUVs. I believe the vehicle should qualify for coverage, repair assistance, recall-related repairs, or special policy consideration from General Motors due to the nature of the engine failure and the known history of similar failures affecting comparable GM vehicles. I am requesting that GM review the vehicle history, diagnostics, and failure condition to determine eligibility for recall coverage, special coverage adjustment, warranty assistance, or reimbursement related to the engine failure.

NHTSA complaint #11740035 — an unverified report by a vehicle owner.

ENGINE

I have put 2 cat converters in 2 yrs in this truck there was a recall for an engine control module that when it gets heated could start a fire but it gets too hot and the converter gets clogged and oil starts going through engine. The dealer us out of business and went to jail. I can't keep putting new converts in and can't get inspection sticker because it causes the check engine light yo come on. What do I do now?

NHTSA complaint #11731923 — an unverified report by a vehicle owner.

ENGINE

When driving in traffic about 10 mph engine shuts down and power steering goes out. . When I slow to turn, the engine shuts down sometimes and the power steering goes out. No warnings. I’m afraid to drive it. I almost hit a lady while turning in a parking lot because the steering went out and it died. Sometime it’s hard to turn the key to start the truck. This has happened 9 or 10 times now.

NHTSA complaint #11714236 — an unverified report by a vehicle owner.

ENGINE

I bought a truck from Paul Gerber Auto sales, Inc(used car dealer) in Omaha Nebraska. The transmission is bad because of the torque converter and a known issue where the transmission fluid gets too hot causing the torque converter to become damaged. There are also multiple known safety recalls with this vehicle and the issue with the transmission has been confirmed by a independent mechanic. The dealer had me driving it down roads that didn't take the vehicle through all of its gears so the problem wasn't noticed until after I had gotten on to the freeway. Went on the freeway I noticed that it was shifting up hard and downshifting hard as well as a rumble strip effects in the vehicle struggled to get up to speed or was sluggish. When I was clear and tried to pull out into a lane from an intersection the vehicle struggled to get up to speed and I was nearly rear-ended. That's when I took it to have an OBD reading which caused the check engine light to turn on and notice that codes were pending which means that the dealership cleared the codes before the test drive. Please have not been made aware yet but I will be filing a report.

NHTSA complaint #11708447 — an unverified report by a vehicle owner.

ENGINE

The air conditioner condenser has a small leak causing the refrigerant to leak out. This is a known problem with all gm Silverado 2014-2017 and a recall needs to be issued. They are all leaking in the same place due to a faulty weld from the factory.

NHTSA complaint #11696260 — an unverified report by a vehicle owner.

ENGINE

Vehicle is experiencing intermittent electrical issues, including vehicle completely shutting off while driving, driver window security warning message appears, radio, outside temp and fuel economy will reset when starting the truck. Last time it shut down while coming to a stop, a message appeared on the driver information screen saying “3 key programmed to vehicle”. Sometimes before it shuts down while driving, the radio and dash lights go out followed by engine stalling and there are different messages that appear briefly, like, service stabilitrac, roll driver window down & 3 keys programmed. The truck has shut down on me while operating 7 times in the last 3 months! This is EXTREMELY dangerous as i lose power steering & brakes! It has happened while in the middle of a busy intersection, in a round about, pulling into a parking spot, driveway and while driving straight on a road. I have cleaned & checked all ground locations, replaced the battery and alternator, cleaned battery terminals and Cables, checked all the fuses and nothing has made it stop!

NHTSA complaint #11692930 — an unverified report by a vehicle owner.

ENGINE

I am writing to report a significant mechanical failure with my 2014 Chevrolet Silverado, which I believe warrants further attention due to its potential safety implications and its connection to a widely documented defect affecting many GM vehicles equipped with Active Fuel Management (AFM) systems. The engine suffered lifter and camshaft failure. This is a well-known problem with GM trucks using AFM systems and can pose a safety hazard, particularly if the vehicle stalls while driving. Failed Component: The engine’s valve lifters and camshaft failed. The components and repair documentation are available for inspection upon request. Safety Risk: This failure caused loss of power while driving, creating a risk of stalling in traffic, which could endanger both myself and other drivers on the road. Confirmed Diagnosis: The issue was confirmed by the dealership where I service my truck, Team Chevrolet in Las Vegas, NV. They identified the lifter and camshaft failure as the source of the symptoms. Inspection History: The vehicle has been inspected and diagnosed by the repair facility. I reported my concerns directly to General Motors and formally requested goodwill assistance and an extended warranty to cover the repairs. However, GM denied my goodwill and extended warranty request despite widespread reports and TSBs. Warning Signs: These warning signs began to show June, 2025 after picking it up from the service department at Team Chevrolet as it had been serviced. The truck was taken back to the dealership within 30 minutes of picking it up.

NHTSA complaint #11674598 — an unverified report by a vehicle owner.

ENGINE

twice know i have had the truck shutdown when turning to the left at slow speed . Took the truck to a maint shop and they had three codes in the computer but nothing they could fix so they cleared the codes and said to drive it and if it happens again to bring it in and they'll see what they can find out ,but my have to go to agm service center to have it checked . so I'm drive carefully and hope not to have a accident.

NHTSA complaint #11671148 — an unverified report by a vehicle owner.

ENGINE

the truck went in for the fuel injector number 6 again. went in on June 13 and on the 12 as well. on the 12 they said it was the number 6 coil. they then gave it back but the next day had to be returned again for the same problem. this time they found the number 6 fuel injector was possibly shorted out. the service manager did call and said that i was right that it was the fuel injector. i feel that i paid for a coil that should not have been replaced in the first place.

NHTSA complaint #11670117 — an unverified report by a vehicle owner.

ENGINE

The contact owns a 2014 Chevrolet Silverado 1500. The contact stated while driving 55 MPH and depressing the accelerator pedal, the vehicle failed to accelerate as intended and decelerated unintendedly. The contact pulled over to the side of the road, turned off and restarted the vehicle; however, the failure persisted. The contact was able to continue driving; however, the vehicle failed to exceed 20 MPH. There was no warning light illuminated. The vehicle was taken the dealer, where it was diagnosed and determined that the engine lifters needed to be replaced, and the contact was provided an estimate for the repair. The vehicle was then taken to an independent mechanic, where the upper part of the engine was rebuilt, and the lifters were replaced. The vehicle was repaired. The manufacturer was notified of the failure. The contact was referred to the NHTSA Hotline for assistance. The failure mileage was 98,000.

NHTSA complaint #11669704 — an unverified report by a vehicle owner.

ENGINE

I was driving home from work on 5/9/2025 and my truck slowly started to loose power and I almost got rear ended going up a hill. NO check engine lights or symptoms noted prior I was able to make it to the Chevy Dealer here in town where i Live and dropped off. dealer noted cyl 4 has a misfireand there is a tick noise on that bank.checked and found no compression on cyl 4, removed valve cover and found that the lifter for cyl 4 is broken and pushrod bent. After reasearching found this to be a common problem, contacted Chevy reagarding this as truck is low miles (88k) NO help offered.

NHTSA complaint #11663993 — an unverified report by a vehicle owner.

ENGINE

While driving to work a month ago (3/19/25) I lost the power to accelerate out of nowhere. And my truck started making this noise, what I can only describe as a winding up noise while trying to accelerate. I was going 55mph on a busy morning commute. There were no warning lights. I pulled over and shut the truck off. Checked oil (even though it was changed a week or 2 prior). Oil was fine. Let truck sit for 10 mins then tried to turn back on, it started but had that winding up noise when just sitting in idle, the check engine light then came on after it was on for a minute or so. Ran codes at home, and truck started making an additional rattle noise on top of the winding up noise when had to be turned on. One code was the crankshaft position sensor, we changed that out. Then the truck wouldn't start. Taken to Dealership, and they said initially they found a broken connector to the engine harness. Fixed that then truck started but still making the rattle/clunk type noise and louder than at home so they continued diagnostics because they said the noise sounds like a rod knock, so rod either being bent/broken/slipping. Further diagnostics found that oil and coolant are mixed along with metal shavings through engine so new engine is needed.

NHTSA complaint #11657749 — an unverified report by a vehicle owner.

ENGINE

EVERYTHING, it started with spark plugs and boots which is normal, then all of a sudden one ignition coil after the other, then the transmission, now it's the valve cover gaskets, the ENGINE oil cooler lines, the rear main seal, the oil pan itself, like literally everything. The places I took it advised probably getting a whole new engine. Mind you I just financed this truck 2 years ago. The transmission cost me $6,700 dollars out of pocket because my power train warranty wouldn't cover it because some wire. I don't know but there is seriously big problems with this year make and model. Also, the catalytic converters are bad and the exhaust manifold. All these things can't be wrong all at the same time unless there was a major issue prior to me financing when Chevrolet spit these trucks out.

NHTSA complaint #11658045 — an unverified report by a vehicle owner.

ENGINE

The contact owns a 2014 Chevrolet Silverado 1500. The contact stated that while the vehicle was parked, there was an abnormal sound coming from the rear end of the vehicle. The contact discovered that there was white and blue smoke coming from the exhaust. The check engine warning light was illuminated. The vehicle was taken back to the residence. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was unknown.

NHTSA complaint #11654854 — an unverified report by a vehicle owner.

ENGINE AND ENGINE COOLING

The contact owns a 2014 Chevrolet Silverado 1500. The contact stated that while driving at 55 MPH, the brake pedal was depressed down to the floorboard, but the vehicle failed to stop immediately. The contact was able to pull over to the side of the road. The vehicle slowed down and came to a stop with several unknown warning lights illuminated. The failure occurred on 4 separate occasions. The vehicle was towed to the dealer; however, no cause for the failure was found. The vehicle was not repaired; however, the contact replaced the brake pads. The contact stated that on another occasion, while driving 55 MPH, the vehicle lost motive power, the steering wheel locked, and lost functionality. Several unknown warning lights were illuminated. The contact restarted the vehicle and the vehicle returned to normal functionality. The vehicle was taken to the dealer; however, no cause for the failure was found. The vehicle was not repaired. The contact stated that on another occasion while driving 55 MPH, the A/C stopped functioning as intended. The vehicle was taken to the dealer and was diagnosed with a coolant leak. The vehicle was repaired; however, the failure persisted. The manufacturer was not notified of the failure. The failure mileage was approximately 59,000.

NHTSA complaint #11646360 — an unverified report by a vehicle owner.

ENGINE

Ignition lock actuator faulty. Causing ingition to be stuck in start position.

NHTSA complaint #11642230 — an unverified report by a vehicle owner.

ENGINE

I have experienced engine failure in my 2014 Silverado 6.2L on 3 separate occasions. All caused by the AFM system. Rockers lock into the wrong position while transforming from 4 cylinder to 8 cylinder operation. The first two occurrences bent lifters and caused a failure to the catalytic converter. A certified GM service department at a local dealership replaced parts covered by warranty. On the third occasion the rockers locked into the wrong position, bent push rods, damaged the cam shaft and caused a failure in the catalytic converter. It was taken to the same GM service department at Lou Fusz Chevrolet. My 5 year warranty had expired and GM refused to cover the parts they had previously replaced a year prior. I was quoted approximately $10k for repairs and $16k for full engine replacement. After some back and forth with the service department manager I requested to speak with the lead mechanic. He informed me that it was an AFM system problem he was very familiar with. He stated to me that I would be better off taking it to a private shop and bypassing the AFM system as he was “working on” 10-15 vehicles a month with the same issue. At the time I had reached out to GM corporate about the issue and I did not receive a correspondence. I have all of the paperwork and receipts and all other service records dating back to my purchase of the vehicle in 2018.

NHTSA complaint #11636760 — an unverified report by a vehicle owner.

ENGINE

The contact owns a 2014 Chevrolet Silverado 1500. The contact stated while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to the dealer, who identified a misfire in cylinder #4, resulting in damages to the lifters and camshaft. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 100,000.

NHTSA complaint #11632766 — an unverified report by a vehicle owner.

ENGINE

The contact owns a 2014 Chevrolet Silverado 1500. The contact stated while driving 20 MPH, the engine made an abnormal knocking sound. There was no warning light illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed with lifters failure. The mechanic determined that the lifters needed to be replaced. Additionally, the mechanic informed the contact that if the camshaft had failed, the camshaft and the engine would need to be replaced. The vehicle was not repaired. The dealer was contacted and referred the contact to the manufacturer. The manufacturer was contacted and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 147,000.

NHTSA complaint #11615557 — an unverified report by a vehicle owner.

ENGINE

check engine light came on and the code was cylinder 7 misfire 'code p0307'. it was replaced the first time and only lasted less than two months. the same code came up again and when they put a new one in they had to tow it back because it failed not even 30 minutes later.

NHTSA complaint #11607861 — an unverified report by a vehicle owner.

ENGINE

The contact owns a 2014 Chevrolet Silverado 1500. The contact stated while driving 50 MPH, the vehicle began to jerk. The vehicle downshifted and upshifted violently. There was smoke coming from the tailpipe. The accelerator pedal was depressed, but the vehicle was slow to respond. The vehicle stopped and lunged forward. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic who was unable to service the vehicle and referred the contact to the dealer. The vehicle was taken to the local dealer, where it was diagnosed that the fuel injectors and cylinder #7 needed to be replaced. The vehicle was repaired. The OnStar error message was displayed and stated to disregard. The contact used and OBD tool and retrieved DTC code: P0207 (Power Train injector) and P0300 “Power train”; and a random cylinder misfire was detected. The manufacturer was contacted and informed the contact there were no open recalls on the VIN. The failure mileage was approximately 69,000.

NHTSA complaint #11591582 — an unverified report by a vehicle owner.

ENGINE

AFM Lifters failure: - During the AFM activation and deactivation the lifters on my truck were observed to be collapsed causing the engine to malfunction. Transmission/Torque converter: Clunking noise when shifting between gears Makies noise when the gear is in neutral Rough shifting “Chevy Shake” - My truuk shakes violently while driving over 35 miles per hour, tires, alignment, etc was been tripple checked and replaced, dealer states it is within spec (even the shacking).

NHTSA complaint #11565961 — an unverified report by a vehicle owner.

ENGINE

The vehicle is now at 158,109 Mi as of January 5th 2024 at approximately 148,000 to 152,000 Mi I noticed the transmission and or the rear differential starting to slip have play and making various noises and sounds along with a jerking feeling where you would hit the gas and you could see the tachometer wind up a little bit and then when it seems the gears would catch or however it works it would jerk you forward with a bang feeling like somebody hit you from behind but there's no one back there a few times I would hit the gas to leave from a stop and merge into traffic and the vehicle would not move at all until 2 or 3 seconds had passed for the engine and transmission to finally catch up with each other or something I've noticed many recalls and problems on these Transmissions as well as the same issues on a previous Chevy Silverado 2014 I had prior to this one I'm very concerned that at some point I'm going to try and enter a traffic situation and not be able to have forward motion taking a chance on being part of a collision due to the vehicle not moving forward as required when you hit the gas pedal. I've noticed signs of fluid around my rear differential cover I continuously check the fluid in the transmission it is always fine I would like to have it checked out as the engine is an excellent motor with no obvious problems I take care of it changing the oil and Performing maintenance regularly as expected and required.

NHTSA complaint #11563804 — an unverified report by a vehicle owner.

ENGINE

Steering assist disabled comes on while driving and Steering locks up and shuts everything off,and then starts back. Very Very dangerous on the road not knowing where or when you're not in control of the vehicle. When this occurs engine stops,no brakes.

NHTSA complaint #11561585 — an unverified report by a vehicle owner.

ENGINE

Lifter failure

NHTSA complaint #11549860 — an unverified report by a vehicle owner.

ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY

The contact owns a 2014 Chevrolet Silverado 1500. The contact stated that upon taking the vehicle to the dealer for an oil change, she was informed that the radiator was leaking. The dealer determined that the radiator, thermostat, and the coolant lines needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that the vehicle was not covered under GMC Special Coverage Number: N15170099. The failure mileage was approximately 71,000.

NHTSA complaint #11547094 — an unverified report by a vehicle owner.

ENGINE

The contact owns a 2014 Chevrolet Silverado 1500. The contact stated while driving at an undisclosed speed, the vehicle was driving sluggishly. The contact stated that the vehicle lost motive power. The contact was able to restart the vehicle. The contact stated that the failure recurred, but the contact was able to drive the vehicle to her destination. The contact stated that the fuel pump had been replaced several months prior to the failure. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 200,000.

NHTSA complaint #11545602 — an unverified report by a vehicle owner.