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 ...

Some engine issues are common, and most folks can recognize them. But some are so unusual, you may never have seen them. Here's how to tell when they're here.

Ever started up your car and discovered an annoying tapping sound coming from your beloved engine? It’s a fairly common problem for cars of a certain age or mileage that have been mildly neglected in ...