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

Downshifting

Shifting to a lower gear, usually so that the engine can operate in its proper rpm range, or in certain circumstances to slow the vehicle.



See Also:
Backfire
Crankshaft Pulley
Tachometer
Lug Nuts
Grease Seal
Quenching
Flash Point
Sending Unit

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: