You'll be hard-pressed to find an overhead valve — also known as a pushrod — engine in anything outside of a General Motors LS/LT V8 or one of Stellantis' Hemi V8s. Everything else is a part ...

As a result of that combustion, a lot of gasses are produced around the engine. One such vital part that helps deal with gas that finds its way into the crankcase is the PCV valve — or positive ...

Rotary engines (also known as Wankel engines and Wankel rotary engines) are quite different from piston or "reciprocating" engines. One of the distinguishing features is that they don't need ...

The valve is an inexpensive, easily replaced example of the dozens of parts that can elicit a check engine light and associated vexing investigation. It can also be the source of oil leaks.