Cruise Control: Description and Operation

The speed control system is composed of On-Off, Set-Acc, Coast and Resume (if equipped) switches. The system contains vacuum hoses, servo (throttle actuator) assembly, speed sensor, amplifier, check valve assembly, and depending on model and year, a clutch switch, stop light switch or vacuum dump valve. 1983-87 models w/resume, also use a vacuum reserve tank.
To operate speed control system, engine must be running and vehicle speed must exceed 30 mph. When ``On-Off'' switch is actuated, the system is ready to accept a set speed signal. When vehicle speed stabilizes (exceeds 30 mph), and the ``On'' switch is engaged, the operator may depress or release the ``Set-Acc'' button. This speed will be maintained until a new speed has been set, brake pedal has been depressed, or the system is turned off.