Enclave AWD V6-3.6L (2009)
Vacuum Brake Booster: Service and Repair
Power Vacuum Brake Booster Replacement
Removal Procedure
1. Place the vehicle on a level surface and apply the park brake.
2. With the engine OFF, apply and release the brake pedal several times until the brake pedal becomes firm to deplete the vacuum reserve in the
vacuum brake booster.
3. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement (See: Engine, Cooling and Exhaust/Engine/Tune-up and Engine
Performance Checks/Air Cleaner Housing/Service and Repair).
4. Remove the windshield washer solvent heater. Refer to Windshield Washer Solvent Heater Replacement (Traverse) (See: Wiper and Washer
Systems/Washer Fluid Heater/Service and Repair)Windshield Washer Solvent Heater Replacement (Acadia, Enclave, OUTLOOK) (See: Wiper
and Washer Systems/Washer Fluid Heater/Service and Repair).
5. Disconnect the master cylinder fluid level sensor electrical connector (1).
6. Remove the vacuum brake booster check valve and hose assembly (2) from the vacuum brake booster and position aside.
7. Remove the vacuum brake booster vacuum sensor (3) and position aside.