GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

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


    Object Number: 345888  Size: SH
  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Support the vehicle with safety stands.
  3. Clean the dirt and foreign material from the brake hose and brake pipe fitting.
  4. Install a rubber cap or plug on the brake pipe fitting in order to prevent brake fluid loss and contamination.
  5. Using a backup wrench, disconnect the brake hose and brake pipe fitting.
  6. Remove the brake hose retainer.
  7. Remove the brake pipe from the brake junction block.
  8. Remove the brake junction block mounting bolt.
  9. Remove the brake hose.

Installation Procedure


    Object Number: 345888  Size: SH

    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.

    Important: After installation, ensure that the rear flex hose is not twisted and that the rear flex hose does not come in contact with any other components.

  1. Install the brake junction block mounting bolt.
  2. Tighten
    Tighten the brake junction block bolt to 17 N·m (13 lb ft).

  3. Install the brake hose to the brake junction block.
  4. Tighten
    Tighten the brake hose fitting to 17 N·m (13 lb ft).

  5. Install the brake hose fitting to the brake pipe fitting.
  6. Tighten
    Tighten the brake hose fitting to 17 N·m (13 lb ft).

  7. Bleed the hydraulic brake system. Refer to Hydraulic Brake System Bleeding .
  8. Remove the safety stands.
  9. Lower the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.