2018 Chevrolet Tahoe engine problems

Filed Nov 3, 2026 · Engine · 113,000 miles · OH

The contact owns a 2018 Chevrolet Tahoe. The contact stated that while driving 15 MPH, there was an abnormal sound coming from the vehicle. The vehicle was taken to an independent mechanic where it was diagnosed with engine failure. The vehicle was taken to the dealer where it was diagnosed with engine failure. The contact was informed that the lifters and cam shaft needed to be replaced. The vehicle was repaired. In addition, the contact was informed that the failure was a known failure with the vehicle. The failure mileage was approximately 113,000.

Filed Aug 28, 2026 · Engine, Transmission · GA

05/15/23 - AFM Lifter failure - Complete Top End Rebuild under extended warranty purchased when i bought the Tahoe - Preowned certified. Cost $2,000.00 Out Of Pocket ( Days Chevrolet Repaired 86,350 miles) 09/06/23 - Transmission failed - Warranty paid except $2,000.00 (94,000 Miles) 02/02/26 - Broken Driver Side Motor Mount Replaced $350.00 (159,000 Miles) 02/28/26 - Rear end Failure 03/20/26 - AFM Lifter Failure Again - Been in the shop since then. No warranty/ Pay out of Pocket (160,010 Miles)

Filed Jul 27, 2026 · Engine, Transmission · AK

Out of nowhere without any warning light all of a sudden couldn’t back up when geared into reverse to reverse. Turned the vehicle off and back on, then was able to reverse. Left parking lot and was on the road and vehicle started loosing speed, then put into park with hazard lights. When attempting to get off the road for safety reasons tried putting into drive and the car then drove in reverse. Local Fire department came and called in the local police dept for assistance and pushed vehicle off to the side and tow company came and took to the auto shop with information today of the transmission going out, and with that causing happening causing the Fluid to Smell Burnt and Full. The auto shop test Drove and made It 30 Feet and Would Not Move. Transmission Is Failing and Causing the Concern.

Filed May 14, 2026 · Engine · CA

During a road trip, we came to a stop and upon stepping on gas to proceed on the road and it wouldn't go. The engine revved and "pulled" until we were able to move. We took it to a dealership as well as private mechanic and was told it is an engine problem and running $3k or more to have it fixed. We have small children and consider this a safety hazard. Unfortunately, this is the only vehicle we have to commute.

Filed Mar 23, 2026 · Engine · NC

Was driving approximately 45MPH and the truck just slowly powered down and "Engine Power Reduced" and eventually cut off and wouldn't crank back up. Got it towed to the Chevrolet dealership and was told the engine has to be replaced due to the bottom of the motor and the crankshaft in cylinder one. Was told it would be 17k to repair it.

Filed Mar 12, 2026 · Engine, Transmission · WA

Transmission failed at 94,000 miles Misfire 80,000miles AFM/DOD issues $10,000 in repair bills still not fixed

Filed Feb 16, 2026 · Engine, Transmission · TX

Unknown, vehicle starts to jerk when shifting gears. Jerks when breaking and when accelerating. Check engine light on. I see there is a prior recall for the same issue on same year as mine

Filed Jan 20, 2026 · Engine · MA

For several months my check engine light has been flashing when I’m driving, especially on the highway. At times my vehicle feels sluggish. I press further own into the gas pedal and I am not getting adequate propulsion. It also feels like this when I’m going up a hill. I brought the vehicle to two independent service centers to get a diagnostic. One indicated getting misfire readings on two cylinders. The other indicated getting misfire readings in three cylinders. As you would imagine this is an extremely concerning safety risk.

Filed Jun 25, 2025 · Engine · 90,000 miles · NY

The contact owns a 2018 Chevrolet Tahoe. The contact stated that while starting the vehicle, the engine made abnormal rattling and knocking sounds. No warning light was illuminated. The vehicle was taken to the dealer, who determined that the camshaft and valve train needed to be replaced. The vehicle was not repaired. The contact related the failure to the federal safety agency Campaign Number: 25V274000 (Engine and Engine Cooling); however, the VIN was not included in the recall. The manufacturer was made aware of the failure and advised the contact to file a complaint with the federal safety agency Hotline. The failure mileage was approximately 90,000.

Filed Jun 4, 2025 · Engine · NH

Complete Engine failure due to the camshaft being destroyed. Dealership said it was due to the lifters.