Power Brake Assist: Service and Repair
POWER BRAKE BOOSTERREMOVAL
1. Depress the brake pedal five times to deplete any vacuum that may remain in the booster unit.
2. Siphon and drain the fluid from the reservoir.
3. Remove the wiper arm (1) and cowl assembly.
4. Remove the brake lamp switch.
5. Remove clip securing booster push rod to brake pedal (1).
6. Remove the brake booster mounting nuts (2).
7. Disconnect the brake level electrical connector (4).
8. Disconnect the brake lines at the master cylinder.
9. Disconnect vacuum line (1) at booster.
10. Remove master cylinder (1) from the mounting studs (2) on the power brake booster.
11. Remove the booster (1) and spacer block from front cowl panel.
12. Wipe clean any debris from the brake booster cowl mounting hole (2).
INSTALLATION
1. Install the spacer block and gaskets if removed.
2. Guide the booster studs into the cowl panel holes and seat the booster (1) on the panel.
3. Install and tighten new booster attaching nuts (2) to 28 Nm (250 inch lbs.).
4. Install the booster push rod (1) on brake pedal and install clip.
5. Install a new brake lamp switch.
6. Install the vacuum hose to the check valve (1).
7. Install the master cylinder (1) on the brake booster and tighten the nuts (2) to 10 Nm (90 inch lbs.).
8. Reconnect the brake fluid level electrical connector (4).
9. Reconnect the brake lines at the master cylinder and tighten the lines to 19 Nm (170 inch lbs.).
10. Install the wiper arm and cowl assembly (1).
11. Fill and bleed the brake system.