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.



On manual transmission cars ("stick shifts"), a synchromesh is s device that causes two gears to spin at the same rate thus allowing them to mesh smoothly. If yours are bad, your transmission won't shift smoothly, and may even refuse to go into gear.

See Also:
Cooling System
Clutch Disc
Cylinder Head

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