General Motors has updated service bulletin PIP6101, which addresses an engine ticking noise caused by a manufacturing defect ...

GM has reportedly received over 28,000 complaints from owners over the troublesome 6.2-liter engine ...

A federal judge has handed General Motors a key procedural victory in the long-running GM lifter lawsuit, denying a late-stage effort by plaintiffs to split the case into two separate legal battles.

2021 denali w 6.2L. about to run out of powertrain warranty. Have not had the lifter problem yet… but VERY concerned based on multiple dealership and forum reports. Technicians are being muffled on ...

I have found that the collapsed lifter situation rarely makes any noise. In my case cylinder #6 just stopped working and the pushrod bent falling out of the lifters way. We stoipped the engine almost ...