GM Service Manual Online
For 1990-2009 cars only

Rear Brake Hose Replacement Jounce

Removal Procedure


    Object Number: 345888  Size: SH
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Clean all dirt and foreign material from the brake hoses and brake pipe fitting.
  3. Important: Install a rubber cap or plug to the exposed brake pipe fitting ends in order to prevent brake fluid loss and contamination.

  4. Use a backup wrench on the hose fitting, disconnect the brake pipe fittings from the junction block, then cap or plug the brake pipe fitting ends.
  5. Do not bend the brake pipe or the bracket.

  6. Disconnect the brake pipe fitting.
  7. Remove the brake hose retaining clip.
  8. Remove the junction block bolt.
  9. Remove the rear flex hose.

Installation Procedure


    Object Number: 345888  Size: SH
  1. Install the rear brake hose.
  2. 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.

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

  5. Install the brake hose retaining clip.
  6. Connect the brake pipe fitting to brake flex hose.
  7. Tighten
    Tighten the brake pipe fittings to 17 N·m (13 lb ft).

  8. Loosely connect the rear brake pipe fittings to the junction block.
  9. Tighten
    Tighten the brake pipe fittings to 17 N·m (13 lb ft).

  10. Ensure that the hose does not make contact with any part of the suspension. If the hose makes contact, remove the hose and correct the condition.
  11. Bleed the hydraulic brake system. Refer to Hydraulic Brake System Bleeding .
  12. Remove the safety stands and lower the vehicle.

Rear Brake Hose Replacement Caliper

Removal Procedure


    Object Number: 357441  Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  3. Clean all dirt and foreign material from the brake hoses and brake pipe fitting.
  4. Important: Install a rubber cap or plug to the exposed brake pipe fitting ends in order to prevent brake fluid loss and contamination.

  5. Place a backup wrench on the hose fitting, disconnect the brake pipe fitting from the brake hose, then cap or plug the brake pipe fitting end.
  6. Remove the brake hose retaining clip.
  7. Remove the rear brake hose bolt and gaskets from the caliper.
  8. Remove and discard the 2 copper brake hose gaskets. These gaskets may be stuck to the brake caliper and/or the brake hose end.
  9. Remove the rear flex hose.
  10. Remove the brake hose mounting bolt and the compression washers at the caliper.
  11. Remove the brake hose.

Installation Procedure

    Important: Install NEW copper brake hose gaskets

  1. Assemble the NEW copper brake hose gaskets, and the brake hose bolt to the brake hose.
  2. 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.


    Object Number: 357441  Size: SH
  3. Install the front brake hose to the brake caliper.
  4. Tighten
    Tighten the bolt to 45 N·m (33 lb ft).

    Important: The hose must not be twisted. Make sure the hose is not in contact with any suspension component.

  5. With the weight of the vehicle on the suspension, install the brake hose into the bracket.
  6. Remove the rubber cap or plug from the exposed brake pipe fitting end.
  7. Connect the brake pipe.
  8. Install the brake hose retaining clip.
  9. Connect the brake pipe fitting nut to the brake hose.
  10. • Use a backup wrench on the hose fitting.
    • Do not bend the bracket or the pipe.

    Tighten
    Tighten the fitting to 25 N·m (18 lb ft).

  11. Ensure that the hose does not make contact with any part of the suspension. If the hose makes contact, remove the hose and correct the condition.
  12. Bleed the hydraulic brake system. Refer to Hydraulic Brake System Bleeding .
  13. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  14. Remove the safety stands and lower the vehicle.