For 1990-2009 cars

Caution: Refer to Brake Fluid Irritant Caution in the Preface section.

Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice in the Preface section.

### Removal Procedure

1. Disconnect the electrical connector from the brake fluid level sensor.
2. Disconnect the brake pipes from the master cylinder.

Important: Install a rubber cap or plug to the exposed brake pipe fitting end to prevent brake fluid loss and contamination.

3. Plug the open brake pipe fitting ends.
4. Remove the lower air inlet panel support bracket retainer from the master cylinder mounting stud.
5. Pull out air inlet panel support bracket retainer, then rotate it out carefully.
6. Remove the 2 master cylinder mounting nuts.
7. Remove the master cylinder.
8. Remove the reservoir from the master cylinder if it is to be reused on a replacement master cylinder. Refer to Master Cylinder Reservoir Replacement.

### Installation Procedure

1. Install the brake master cylinder reservoir to the master cylinder if it was removed previously. Refer to Master Cylinder Reservoir Replacement.
2. Bench bleed the master cylinder. Refer to Master Cylinder Bench Bleeding.
3. Install the master cylinder to the vacuum brake booster.

Notice: Refer to Fastener Notice in the Preface section.

4. Install the 2 brake master cylinder mounting nuts.

Tighten
Tighten the 2 brake master cylinder mounting nuts to 27 N·m (20 lb ft).

5. Carefully rotate the air inlet panel support bracket onto the master cylinder mounting stud.
6. Carefully install the air inlet panel support bracket retainer to the master cylinder mounting stud.
7. Remove the plugs from the brake pipes.
8. Install the brake pipes to the master cylinder.

Tighten
Tighten the brake pipe fittings at the master cylinder to 38 N·m (28 lb ft).

9. Connect the electrical connector to the brake fluid level sensor.
10. Bleed the hydraulic brake system. Refer to Hydraulic Brake System Bleeding.