Engine ticking issue now linked to several GM models

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

Why do some engines use hydraulic lifters?

Mechanical lifters were once commonplace in internal combustions engines, but they've been mostly replaced by hydraulic lifters, which offer a lot of benefits.
GM Authority

GM Engine Valve Lifter Lawsuit Plaintiffs Denied Motion To Sever By Judge

Judge denies motion to sever GM lifter lawsuit, keeping AFM and DFM claims together after four-year delay. Plaintiffs face an uphill battle.
GM Authority

GM To Fix 2023 Corvette Z06 LT6 Engine Ticking Noise

General Motors unveiled the new 2023 Corvette Z06 in October of 2021, ushering in the next level of performance for the eighth-generation C8 Corvette lineup. The main party piece in the 2023 Corvette ...