Vacuum Brake Booster: Service and Repair

Brake Booster Replacement

Except Si Model
1. Remove the master cylinder.
2. Disconnect the brake booster vacuum hose (A) from the brake booster (B).





3. Remove the engine wire harness clamps (A).





4. Remove the heater hoses (A) from the clamp (B).





5. Remove the lock pin (A) and the joint pin (B), then disconnect the yoke from the brake pedal.





6. Remove the brake booster mounting nuts (C).
7. Pull the brake booster (A) forward.





8. Remove the brake booster (A) by pulling it out and turning it, and remove it from the engine compartment.





9. Install the brake booster in the reverse order of removal, and note these items:
^ Install the master cylinder after installing the brake booster.
^ Replace the master cylinder rod seal.
^ Check the brake pedal height and free play after installing the master cylinder, and adjust it if necessary.
^ Bleed the brake system.

Si Model
1. Remove the master cylinder.
2. Disconnect the brake booster vacuum hose (A) from the brake booster (B).





3. Remove the engine wire harness clamps (A).





4. Remove the air cleaner bracket (B).
5. Remove the lock pin (A) and the joint pin (B), then disconnect the yoke from the brake pedal.





6. Remove the brake booster mounting nuts (C).
7. Pull the brake booster (A) forward.





8. Remove the brake booster by pulling it out and turning it, and remove it from the engine compartment.
9. Install the brake booster in the reverse order of removal, and note these items:
^ Install the master cylinder after installing the brake booster.
^ Replace the master cylinder rod seal.
^ Check the brake pedal height and free play after installing the master cylinder, and adjust it if necessary.
^ Bleed the brake system.