Fleetwood V6-252 4.1L VIN 4 4-BBL (1982)
Brake Vacuum Release Valve: Description and Operation
The Cruise Control system utilizes an electrical brake release switch and a vacuum release valve.
The electric brake release switch cuts off the voltage supplied through the instrument panel switch to the electronic controller when the brake pedal is
depressed.
The vacuum release valve operates after the electric release switch disengages. It serves as a back-up release system and opens a port that vents the
servo unit to atmospheric pressure, allowing the throttle to return to the idle position.
