Servo-Speed Control: Description
A speed control servo is used only with 3.7L V-6 or 4.7L V-8 engines.
The speed control servo (4) is located in the engine compartment and is attached to the bottom of the PDC (Power Distribution Center) (1).
The servo unit consists of a solenoid valve body, and a vacuum chamber. The solenoid valve body contains three solenoids:
- Vacuum
- Vent
- Dump
The vacuum chamber contains a diaphragm with a cable attached to control the throttle linkage.