It's official, I've been added to the list of TB owners with bad valves.
2021 TB purchased in Feb 2021. Build date was Jan 2021. 14,700 miles.
Truck started running rough a few days ago, lots of warning lights flashing, ESC, Parking Brake, ABS etc...etc.
Wasn't able to get it to a dealer until today.
He called this morning and said my valves and lifters need to be replaced.
He verified there is a service bulletin out about defective valves.
Low mileage trucks, GM is now saying to replace all valves and lifters.
Dealer said my truck qualifies as a "low mileage" truck.
Repairs will take until later next week.
Dealer said he has to overnight more parts, there are 3 trucks ahead of mine with the same issue.
Curious if anyone has had issues after their valves/lifters had been replaced?