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.

1. Disconnect the electrical connector (3) from the brake fluid level sensor.
2. Disconnect the brake pipes (4) from the master cylinder (1).
3. Cap the open brake pipes (4) to prevent brake fluid loss and contamination.
4. Remove the master cylinder mounting nuts (2).
5. Move the proportioning valve assembly bracket or the antilock brake modulator bracket forward, just enough to clear the studs on the brake booster.
6. Remove the master cylinder (1) from the booster (5).

1. Bench bleed the master cylinder. Refer to Master Cylinder Bench Bleeding .
2. Install the master cylinder (1) to the vacuum brake booster (5).
3. Position the proportioning valve assembly bracket or the antilock brake modulator bracket, onto the brake booster studs.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

4. Install the master cylinder mounting nuts (2).

Tighten
Tighten the nuts to 27 N·m (20 lb ft).

5. Remove the caps from brake pipes (4).
6. Connect the brake pipe fittings (4) at the master cylinder (1).

Tighten
Tighten the fittings to 23 N·m (17 lb ft).

7. Connect the electrical connector (3) to the brake fluid level sensor.
8. Bleed the hydraulic brake system. Refer to Hydraulic Brake System Bleeding .