2014 Chevrolet Silverado 1500 engine problems

Filed Aug 21, 2026 · Engine · KS

6.2L LT1 GEN V AFM 138880 miles. Driving at highway speed no warning engine CATASTROPHIC FAILURE. Simotanious reaction first check engine light,no oil pressure,limp mode, piston connectioning rod thru side of block in 2seconds.Took to home town dealer. They reported to GM suposeabley. Dealer found lifter,valve spring,valve missing on right bank pulled oil pan found missing parts in little pieces.oil pan had 3 distinct holes in it. Ther had been no issues previous to this event.serviced regularly 5000miles by local dealer.

Filed Jul 9, 2026 · Engine · SD

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.

Filed Jun 20, 2026 · Electrical, Engine · TX

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.

Filed May 26, 2026 · Engine · SD

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.

Filed Apr 17, 2026 · Engine · MA

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?

Filed Jan 29, 2026 · Engine, Steering · AR

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.

Filed Jan 2, 2026 · Engine, Transmission · IA

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.

Filed Oct 29, 2025 · Engine · CO

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.

Filed Oct 12, 2025 · Electrical, Engine · NC

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!

Filed Jul 18, 2025 · Engine, Transmission · NV

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.