Q: How to remove the Vacuum Brake Booster on Scion tC?
A: In order to replace the Vacuum Brake Booster, empty the brake fluid, clean up spills. Take off the wiper arm assembly, cowl top seal, and louver on ventilator. Disassemble wiper motor, outer cowl panel, and brake master cylinder. Unfasten the clevis, dis-assemble the wheel, and dis-assemble brake tubes. Lastly, unscrew the clevis lock nut and take away the brake booster.
Q: How to service and repair the vacuum brake booster on Scion xB?
A: To service the vacuum brake booster, unhook the negative battery terminal, and wait 90 seconds. Empty drain, wipe up, and clean the air cleaner cap. Dislodge the clutch-reservoir tube, the brake actuator assembly, battery, and the brake master cylinder. Then lastly, remove the vacuum hose and the brake booster.