Important: The vacuum check valve and the grommet may be inspected and serviced without removing the booster from the vehicle.

1. Disconnect the brake booster vacuum hose (2) at the vacuum check valve (1).



2. Disconnect the brake booster vacuum check valve (3) from the booster (5).

1. Connect the brake booster vacuum check valve (3) to the booster (5).



2. Connect the brake booster vacuum hose (2) at the vacuum check valve (1).