Vacuum Brake Booster: Service and Repair
VACUUM BRAKE BOOSTER REPLACEMENTRemoval Procedure
1. Remove the air cleaner assembly.
2. Remove the master cylinder mounting nuts (10).
3. Move the master cylinder and the proportioning valve assembly or the antilock brake modulator assembly forward just enough in order to clear the studs on the brake booster. This flexes the brake pipes slightly. Do not bend or distort the brake pipes.
4. Remove the vacuum hose from the vacuum check valve.
5. Remove the brake booster mounting nuts (7).
6. Remove the retaining clip and washer from the brake pedal.
7. Disconnect the brake booster pushrod (1) from the brake pedal (2).
Tilt the entire brake booster slightly in order to work the booster pushrod off the pedal clevis pin without putting undue pressure on the pushrod.
8. Remove the booster from the vehicle.
Installation Procedure
1. Install the brake booster to the vehicle.
2. Connect the brake booster pushrod (1) to the brake pedal (2).
Tilt the entire brake booster slightly in order to work the booster pushrod onto the pedal clevis pin without putting undue pressure on the pushrod.
3. Install the vacuum brake booster mounting nuts (7).
Tighten the nuts to 27 Nm (20 lb ft).
4. Install the vacuum hose to the vacuum check valve.
5. Move the master cylinder (11) and the proponioning valve assembly or the antilock brake modulator assembly onto the brake booster (9) studs.
6. Install the master cylinder mounting nuts (10).
Tighten the nuts to 27 Nm (20 lb ft).
7. Install the air cleaner assembly.