ASE Heating and Air Conditioning Terms & Definitions Practice Test

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Engine control module
The flow of current from a battery; to remove the refrigerant from an air-conditioning system.
Enclosure for the differential and pinion gears. Can be removable are integral part of axle housing. Also called differential housing
The eccentric on a camshaft that acts on lifters or followers in turn, other valvetrain components as the camshaft is rotated, to open the intake exhaust valves.
The electronic computer that controls engine operation.