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Clutch-release Fork

A pivoting clutch housing component that transfers motion from the free-play adjusting rod on the clutch linkage to the attached clutch-release bearing.

Clutch-relief Check Valve

A valve that releases to prevent the buildup of pressure in a multiple-disc clutch assembly.

Clutch-safety Switch

A term often used for neutral start switch or neutral safety switch.

Cm

Centimeter; Also Cm, Curium An element with the atomic number of 96

CMH

Cold mixture heater

CMOS

Complementary Metal Oxide Semiconductor.

CMP

Camshaft position sensor

CMTC

Acronym for Compass Mini Trip Controller Module (Chrysler)

CNG

An acronym for compressed natural gas.

Co

[1] Cobalt An element with the atomic number of 27 [2] The symbol for carbon monoxide

Co

See carbon monoxide.

Co-solvents

An additive of heavier alcohols used with methanol to improve water tolerance and improve other characteristics of gasoline/methanol blends.

CO2

The symbol for carbon dioxide.

Co2

See carbon dioxide.

Coach

1. A bus. 2. A motor home. 3. An enclosed, two-door sedan of yesteryear. 4. A large, four-wheeled carriage; the forerunner of a modern vehicle.

Coach Builder

A manufacture of fine custom-automotive bodies.

Coachwork

The product of a coach builder.

Coating

1. Paint that is used to provide beauty or weather protection to a vehicle or to its parts. 2. Any material applied to a metal surface to provide protection against the elements.

Coaxial Cable

A cable consisting of two conductors concentric with, and insulated from, each other.

Coaxial Speaker

A speaker that contains two drivers