Vacuum Pump: Service and Repair

Power Brake Booster Vacuum Check Valve and Hose Replacement

Removal Procedure

1. Turn the ignition switch to the OFF position.

2. Apply and release the brake pedal several times until the brake pedal becomes firm to deplete the brake booster vacuum reserve.




3. Remove the power brake booster vacuum check valve (1) from the power vacuum brake booster.




4. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement Fuel Injector Sight Shield Replacement.

5. Release the vacuum hose routing clip (1) from the intake manifold ball stud.




6. Disconnect the power vacuum brake booster hose (1) from the intake manifold vacuum port.

7. Release the quick connect (2) from the power brake booster auxiliary pump.




8. Disconnect the power brake booster check valve and hose assembly (1) from the brake booster.

9. Remove the vacuum brake booster hose assembly from the vehicle.

Installation Procedure





Note: A small amount of denatured alcohol can be used as a lubricant for installation. Do not use soap.

1. Install the power brake booster check valve and hose assembly (1) to the brake booster.





Note: A small amount of denatured alcohol can be used as a lubricant for installation. Do not use soap.

2. Connect the power vacuum brake booster hose (1) to the intake manifold vacuum port.

3. Connect the quick connect (2) to the power brake booster auxiliary pump.




4. Connect the vacuum hose routing clip (1) to the intake manifold ball stud.





Note: A small amount of denatured alcohol may be used as a lubricant for assembly. Do not use soap.

5. Install the power brake booster vacuum check valve (1) to the power vacuum brake booster.

6. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement Fuel Injector Sight Shield Replacement.