Buick Envision engine ticking noise. Updated bulletin PIP6101A addresses an issue with debris in hydraulic lash adjusters.

Engine knocking, or detonation, occurs when fuel in the cylinders ignites unevenly, causing metallic pinging sounds, reduced power, and potential engine damage. Key causes include low-octane fuel, ...

Chevy Blazer engine ticking noise. Updated bulletin PIP6101A addresses an issue with debris in hydraulic lash adjusters.

Engine knock is the sharp, metallic sound that cuts through the hum of a healthy engine. At its core, engine knock is a problem of timing. In a knocking engine, parts of the air-fuel mixture don't ...