Cruise Control Servo: Service and Repair
RD. Vacuum Servo, Adjustment/Replacement
RD1. Adjustment of Vacuum Servo
The cable should be under tension when car is idling, but it must not affect the setting of the throttle,
Adjust nut on vacuum servo with a box wrench.
RD2. Vacuum Servo Replacement
Disconnect vacuum hose and cable to throttle control at vacuum servo.
Use caution to avoid damaging rubber seals.
Remove screws holding vacuum servo on bracket.
Install the new vacuum servo in the reverse order.
Inspect hoses and couplings for leaks.