What is a PVC Valve in a Car Engine?

Answer Known properly as a "PCV", the abbreviation for Positive Crankcase Ventilation is often mistakenly called a "PVC." These systems allow built-up crankcase pressure to release and have been used nea... Read More »

Top Q&A For: What is a PVC Valve in a Car Engine

What Is the Egr Valve on a 318 Engine?

Every car manufactured in the U.S. is equipped with an exhaust gas recirculation (EGR) valve. EGR valves play an important role in reducing exhaust emissions.

What Is a Engine Valve?

Engine valves are portholes that control the flow of gases into and out of an engine. They are usually located in the top of an engine's combustion chamber and open and close by means of a mechanic... Read More »

What is a 24-Valve DOHC Engine?

The valve train of a 24-cylinder double overhead cam (DOHC) engine is not the top of the line, but it's enough to give an average sports car the get-up-and-go that most consumers like to feel when ... Read More »

How to Find the EGR Valve on an Engine?

A vehicle's exhaust recirculation valve is usually vacuum-operated, but some models have an electrically operated EGR valve. The valve lowers the nitrogen dioxide gases that are produced by the com... Read More »