For 1990-2009 cars

### Removal Procedure

1. Apply and release the brake pedal several times until the pedal becomes firm to deplete the power brake booster vacuum reserve.
2. Disconnect the power brake booster vacuum sensor electrical connector.
3. Remove the power brake booster vacuum sensor (1) from the power vacuum brake booster.
4. Release the hose clamp (2) and remove the vacuum hose (3) from the vacuum sensor.

### Installation Procedure

1. Install the power brake booster vacuum sensor (1) to the power vacuum brake booster.

If necessary, a small amount of denatured alcohol can be used as an assembly aid for installing the vacuum sensor to the vacuum booster grommet. Do not use soap.

2. Position the hose clamp (2) to the vacuum hose (3) and install the hose to the power brake booster vacuum sensor.

If necessary, a small amount of denatured alcohol can be used as an assembly aid for installing the vacuum hose to the vacuum sensor. Do not use soap.

3. Connect the power brake booster vacuum sensor electrical connector.