Servo - Speed Control: Description

Fig 1: Identifying Speed Control Servo Components

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

A speed control servo is used only with 3.7L V-6 or 4.7L V-8 engines. 

The speed control servo (6) is located in the engine compartment and is attached to the right inner fender. 

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.