Chevrolet Camaro knocking problems

Filed Apr 29, 2026 · Engine, Fuel system · TX

Dealership replaced all 16 lifters and replaced camshaft. Dealerships repair took 28 days. Repair cost $4k out of my pocket and Chevrolet Corporate covered $4700 due to the know lifter issue with their engines. Within 24 hours & less than 100 miles, vehicle started making new abnormal noise, and the engine shut off and would not start back up. There were no warning lamps, messages or symptoms prior to the dealership’s extensive engine repair. Had it towed back to the dealership. Dealership informed that it was catastrophic engine failure. Cylinder 1 piston connecting rod bearing spun damaging the crankshaft. Stating engine replacement required. Dealership stated that they are not accepting liability. Dealership is also not providing documentation of diagnostics report/ inspection of the failure, as well as documentation and diagnostics on the cause of failure. Dealership stated that they have no explanation as to how the failure occurred. Chevrolet Corporate Customer claims team will not escalate the claim further and will not assist in having dealership provide mandatory documentation that was requested.

Filed Sep 10, 2025 · Engine · 23,000 miles · MI

The contact owns a 2019 Chevrolet Camaro. The contact stated that while driving at an undisclosed speed, there was a loud knocking sound coming from the engine compartment, the check engine warning light illuminated. The vehicle was taken to the dealer, where it was diagnosed and determined that the exhaust system had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 23,000.

Filed May 10, 2025 · Electrical, Engine · MI

Over a year ago, my car developed an intermittent slow crank/starting issue. After driving 20–30 minutes and turning the engine off, it often wouldn’t restart on the first try, sometimes requiring 2–5 cranks. From my research (forums, Reddit, Facebook), I suspected heat soak affecting the starter, which can eventually harm the battery, alternator, or starter itself. About six months ago, the battery was replaced under warranty, though I don’t know the full details of what the dealership diagnosed back then. On April 25, 2025, a more dangerous incident occurred: while driving on the highway, my engine suddenly lost all power without warning, right as I tried to accelerate to merge lanes. I had to coast in neutral onto the shoulder, narrowly avoiding a dangerous situation on a busy road. There were no warning lights or advance signs. After getting towed, I suspected the alternator had failed due to the long-term starter heat soak issue. Both the tow truck driver and dealership technician thought the same, especially after the dealership checked the OBD2 and only saw low-voltage-related codes. After 1-2 weeks of diagnostics, the dealership shocked me with their findings: the engine had catastrophically failed. They suspect metal shavings, possibly due to a rod bearing or crankshaft failure, but the exact cause is still under investigation. They are going to replace the engine and will provide the full details once the work is done. What’s concerning is that the slow crank issue had been happening for over a year, yet no clear signs pointing to impending engine failure. Only hints were a static (not flashing) check engine light that came on and off a few times over the past year, usually disappearing after 1-2 days and not returning for months. The LT1 6.2l V8 in my 23 Camaro is essentially the same engine found in GM’s recent massive recall for L87 6.2l V8 engines in trucks/SUVs. This calls for investigation into the LT1 engines.

Filed Apr 27, 2025 · Engine · MI

At 14000 miles my 2022 Camaro main rod bearings sized up, ruining the engine. This is the same exact 6.2 engine that is in the recalled GM trucks so I’m not sure why it is limited to just the trucks and not the Camaros as well. I was denied warranty coverage because of an intake and engine ECU calibration not performed by the dealership. I changed oil and filters regularly and the ECU calibration had nothing to do with the rod bearings. I also have many group screenshots of other SS Camaro owners of later model years posting about the same issue I can share.

Filed Apr 9, 2023 · CA

It was a near-death experience as I waited at a red light in my 2016 Camaro. Out of nowhere, the car started violently shaking, and before I could react, I almost collided with the vehicle in front of me. The sudden loss of power left me stranded amidst honking cars, making the situation even more perilous. After being towed to the nearest dealership, they attempted to fix the issue with two transmission flushes, but the problem only escalated. The car is now a ticking time bomb, completely inoperable, and I fear that other drivers may have been in similar danger. According to the dealership, the root of the problem lies with the torque converter, a faulty component that could have catastrophic consequences if not addressed immediately.

Filed Feb 14, 2023 · Engine · AZ

I was driving down the freeway when I suddenly heard a knock coming from the motor. The engine blew a rod almost immediately. Parts and debris started shot out of the bottom of the vehicle. The debris hit my tires, causing me to swerve. I was ultimately able to maintain control of the vehicle and get off the freeway. My vehicle had to be towed.

Filed Mar 12, 2022 · Engine, Transmission · OH

Vehicle shakes badly when it wants to stalls without any symptoms. All of a sudden the car makes metal rod knocking and scraping sounds i checked oil and it was gone. No oil leaks fresh oil metallic color in engine oil. Just financed this vehicle 2011 chevy camaro with 50,000 miles and don’t have a warranty. A car engine should not seize out of the blue at low miles and no oil pressure light indicated low or no oil. Very dangerous i lost acceleration going up hill and totally stalled. This needs to be fixed and recalled especially oil pressure light should of illuminated

Filed Dec 10, 2021 · Electrical · 59,500 miles · CA

The contact owns a 2015 Chevrolet Camaro. The contact stated while driving 35 MPH, the right turn signal was engaged and made an abnormal ticking sound. The contact also stated that the radio inadvertently made a loud popping electrical sound and the instrument panel screen turned off. There were no warning lights illuminated. The dealer was not notified of the failure. The contact stated that the failure had been reoccurring while driving. The manufacturer was notified of the failure and advised the contact that they would follow up with the federal safety agency. The vehicle was not diagnosed or repaired. The approximate failure mileage was 59,500.

Filed Nov 9, 2021 · Electrical · 99,000 miles · GA

The contact owns a 2014 Chevrolet Camaro. The contact stated that the turn signal switch would fail to make the normal ticking sound when engaged or would make an abnormal sound instead. There were no warning lights illuminated. The contact also stated that the radio and the Bluetooth would inadvertently disengage. The dealer was not notified of the failure. The manufacturer was notified of the failure and referred the contact to the dealer for diagnostic testing. The vehicle was not diagnosed or repaired. The approximate failure mileage was 99,000.

Filed Jan 21, 2021 · Electrical, Lights · 32,440 miles · TX

The driver side door started making a knocking noise and the window would not shut all the way. The doors would start unlocking on their own and the driver window would try to roll all the way up unsuccessfully. The control panel would flash a notice that the door was unlocked and the interior lights stayed on while driving and when parked and engine turned off. One event lasted 45 seconds while I was driving on the interstate highway and another event while I was sitting at my local chevrolet service center. This event happened while the remote key was sitting on the dash in service center envelope and the car was off. The doors started unlocking and locking and driver window started going up and down. Then all the doors locked with me inside of the car and I could not open the door to get out all while the interior lights stayed on. I recorded the events as they occurred but they are in ,mp4 format and I am unable to upload them.