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, ...

Occasionally, an engine will develop noises that are difficult to diagnose. A “knocking” sound is the most typical engine noise that is an indication of a mechanical problem that can be fixed if ...

DALLAS — It helps to know a really good mechanic. A relative of mine recently needed to have her vehicle seriously repaired and went to one such mechanic, who said he wasn’t going to perform the ...