Glossary of Auto Terms

DriverSide's Car Dictionary has the most comprehensive definitions of automotive terms. This auto glossary can help you decipher what your mechanic is fixing and what the purpose or function of the particular auto part or accessory is for. We have taken the mystery out of automotive service jargon, so that you don't have to.

Back

Exhaust Valve

You car has two primary types of valves--Inlet and Exhaust--the act as little "doors" to hold air in and let air out, depending on the need. The exhaust valve opens to allow the spent combustion gases to exit the combustion chamber.



See Also:
Front-Wheel Drive
Head Gasket
Block
Timing
Throttle
Cylinder Head
Power Steering
Supercharger

Diagnose Your Car's Problem

Engine won't start? Weird sound? Strange smoke? Got something going on with your car but not sure what it is? The easy to use DriverSide Diagnostic Tool is here to help you figure it out.



Enter Zip: