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.



A phenomenon in which the air/fuel mixture self-ignites before the spark plug fires. This generally results in a knocking or pinging sound. No es bueno.

See Also:
Intake Manifold
Carburetor Bowl
Lean Fuel Mixture
Fuel/Air Mixture
Exhaust Manifold

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