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Collector Tank

The tank that collects coolant from the engine, containing a baffle plate to aid in even distribution of coolant through the core.

Collision Avoidance System

A system that uses sonar or another technique to detect when a vehicle is getting too close to another object. Most systems trigger a visible or audible alert to warn the driver. Some backup warning systems use a sensor mounted on the rear of a vehicle or even on a license plate frame.

Collision Shop

A specialty paint and body shop that restores a wrecked or damaged vehicle to its pre-accident condition.

Color Code

A means of identifying conductors or vacuum hoses by the use of color.

Color Keyed

Matching paint color, a term often applied to a bumper or other trim piece that is painted body color.

Color Matched

See color keyed.

Color Sanding

Color-blending by lightly sanding to smooth surface imperfections, using 1000 grit or higher paper.

Color-change Paint

See color-shift paint.

Color-code Chart

A chart listing the colors of wire insulation and, sometimes, wire sizes for a particular automobile.

Colorshift Paint

See color-shift paint.

Combination Brake System

A dual-brake system that uses disc brakes at the front wheels and drum brakes at the rear wheels.

Combination Manifold

An assembly which includes both the intake and exhaust manifolds in one casting

Combination Valve

1. S hydraulic control valve with two or three valve functions in one valve body. 2.An H-valve, used in some early air-conditioning systems, combining a suction throttling valve and an expansion valve.

Combined Emissions-control System

An early General Motors transmission-controlled spark system that uses the solenoid valve's plunger as an auxiliary throttle stop.

Combustion

The burning of the air/fuel mixture in an engine.

Combustion Chamber

Area above a piston at TDC, primarily distinguished by a recessed cylinder head, where combustion takes place.

Combustion Chamber

The area of engine in which combustion occurs--i.e., when the spark ignites the air and fuel mixture to produce power during the combustion cycle. A 4-cylinder engine will have four combustion chambers, an 8-cylinder engine will have eight, and so on. In most cases, a combustion chamber is a concave area on the bottom of a cylinder head. If the same amount of air and fuel enters a combustion chamber, a larger chamber will produce a lower compression ratio, while a smaller chamber will produce a higher compression ratio.

Combustion Control Computer

The fuel injection system used on 1981 through 1983 Chrysler Imperial vehicles

Combustion Cycle

An automotive engine uses a 4-stroke combustion cycle to make power. The four strokes actually refer to the movement of a piston in a cylinder

Combustion Emission Control (CEC)

An exhaust emission-control system that combines a transmission-controlled spark system and a deceleration throttle-position device.