10.0
really awful- Typical Repair Cost:
- No data
- Average Mileage:
- 16,050 miles
- Total Complaints:
- 2 complaints
Most common solutions:
- gm is going to replace lifters (1 reports)
- gm replaced engine under warranty (1 reports)
This problem may be covered under warranty. Ask your GMC dealer.
2022 GMC AT4 Waldoch with a 6.2 gas truck has bad lifters on drivers side makes all kinds of noise for about 15 seconds when u first start it up in the morning and start to head down the highway this should not happen with a truck with 2k miles should be a RECALL how gm is fixing it.
- jshlvi2, Seatonville, US
On July 15, 2023, I had "catastrophic engine failure" on my 2022 "Refreshed" AT4. Left stranded on the side of I-75 South in Bradley County, TN.
Truck was towed to my local dealer, where it sat for about 10 weeks awaiting a new crate 6.2L from GM.
GM covered the costs of all parts, engine, labor, rental vehicle and GM has issued a certificate for a new 100K warranty on the engine.
My issue/problem/complaint continues to be GM's apparent refusal to acknowledge the problems caused by the AFM system and also because no one can/will tell me whether my new replacement engine has the same defective parts or not.
I have always driven my vehicles (including a Suburban and 2 Yukon's) until the wheels fall off. Sucks to have to worry about whether my new truck will continue to get me where I am going even though it only has about 32k miles on it.
- Josh J., Cleveland, US