Vacuum Brake Booster: Service and Repair

Removal
1. Disconnect the battery ground cable.
^ closes when the engine is turned off.
^ in the closed position, traps engine vacuum in the power brake booster.
^ retains vacuum to provide several power assisted brake applications with the engine off.





2. Disconnect the fluid level sensor connector.





3. Position the speed control cable out of the way.





4. Disconnect the power brake booster check valve.





5. Remove the brake master cylinder nuts.





6. Remove the wiring harness bracket, and position aside.
7. Remove the brake master cylinder and position aside.





8. Remove the instrument close-out panel pushpins, and then remove the panel.





9. Remove the stoplight switch retaining pin.





10. Slide the stoplight switch and booster push rod off the brake pedal pin.





11. Remove the brake booster retaining nuts.





12. Remove the power brake booster.

Installation











1. CAUTION: The brake switch must be positioned with the closed hole away from the brake pedal arm and the open hole facing upward.

NOTE: The brake booster input rod must be correctly oriented during installation.

To install, reverse the removal procedure.