Brake Booster Vacuum Sensor: Service and Repair

Power Brake Booster Vacuum Sensor 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 windshield washer solvent heater, if equipped. Refer to Windshield Washer Solvent Heater Replacement (Acadia, Enclave, OUTLOOK) (Service and Repair) Windshield Washer Solvent Heater Replacement (Traverse) (Service and Repair).
4. Disconnect the power brake booster vacuum sensor electrical connector.




5. Disconnect the power brake booster check valve with vacuum sensor and hose assembly (1) from the brake booster.




6. Release the clamp and remove the power brake booster vacuum sensor (1) from the vacuum hose.

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 vacuum sensor (1) to the vacuum hose.
2. Secure the clamp to the power brake booster vacuum hose.





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

3. Install the power brake booster check valve with vacuum sensor and hose assembly (1) to the brake booster.
4. Connect the power brake booster vacuum sensor electrical connector.
5. Install the windshield washer solvent heater, if equipped. Refer to Windshield Washer Solvent Heater Replacement (Acadia, Enclave, OUTLOOK) (Service and Repair) Windshield Washer Solvent Heater Replacement (Traverse) (Service and Repair).