GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2009 🢒 Vibe - AWD 🢒 Brakes 🢒 Park Brake 🢒 Rear Brake Caliper Overhaul

Rear Brake Caliper Overhaul All Wheel Drive and GT

Disassembly Procedure
  1. Remove the rear brake caliper from the vehicle. Refer to Rear Brake Caliper Replacement.
  2. Wrap tape on a flat blade tool.

    3. Object Number: 238935 Size: SH
  3. Use a taped flat blade tool in order to remove the caliper set ring (3).
  4. Use a taped flat blade tool in order to remove the piston boot (2).

    5. Discard the piston boot.


    Object Number: 238931 Size: SH
  5. Insert a shop cloth (2) into the caliper (1) in order to catch the piston.

    6. Warning: Wear safety glasses when using compressed air in order to prevent eye injury.

    Warning: Do not place fingers in front of the caliper piston(s) in an attempt to catch or protect it when applying compressed air. The piston(s) can fly out with force and could result in serious bodily injury.

    Caution: Use just enough air pressure to ease the piston out of the bore. You can damage a blown-out piston even with the padding.

  6. Apply compressed air to the caliper brake hose connector hole in order to remove the piston from the caliper.

    7. Object Number: 238925 Size: SH
  7. Use a taped flat blade tool in order to remove the piston seal.

    8. Discard the piston seal.

  8. Remove the bleeder valve cap.
  9. Remove the bleeder valve.

Inspection Procedure

    Object Number: 2014000 Size: SH
  1. Clean the following components in denatured alcohol or an equivalent brake parts cleaner:
    2. • The caliper housing (1)
    • The caliper piston (3)
    • The caliper set ring (5)
  2. Dry the components and all the passages in the caliper housing using unlubricated, compressed air.
  3. Inspect the piston bore and the slide pin bores of the caliper for damage, wear or corrosion. Replace the caliper assembly if damage, wear or corrosion is evident.
  4. Inspect the piston and the caliper housing for damage, wear or corrosion. Replace the components if damage, wear or corrosion is evident.

Assembly Procedure

    Note: Do not tighten the bleeder valve yet. Tighten the bleeder valve after installing the caliper and bleeding the brake system.

  1. Install the bleeder valve to the caliper.
  2. Install the bleeder valve cap.
  3. Apply lithium soap base glycol grease to the NEW piston seal.
  4. Install the piston seal into the caliper bore. Verify the seal is not twisted.

    5. Object Number: 2014085 Size: SH
  5. Apply lithium soap base glycol grease to the NEW piston boot (1).
  6. Apply lithium soap base glycol grease to the caliper piston.
  7. Install the piston boot to the grooves on the piston.
  8. Lubricate the caliper bore and the NEW set ring with Delco Supreme 11 brake fluid, GM P/N 12377967 (Canadian P/N 992667), or an equivalent DOT 3 brake fluid.
  9. Install the piston into the caliper bore.

    10. Object Number: 2014089 Size: SH
  10. Install the piston boot (1) to the grooves on the caliper housing.
  11. Use a taped flat blade tool in order to install the set ring (2) securely in the grooves of the piston boot.
  12. Install the caliper to the vehicle. Refer to Rear Brake Caliper Replacement.

Rear Brake Caliper Overhaul Except All Wheel Drive and GT

Disassembly Procedure
  1. Remove the rear brake caliper from the vehicle. Refer to Rear Brake Caliper Replacement.

    2. Object Number: 2014094 Size: SH
  2. Use a commercially available caliper piston tool (1) in order to turn and remove the caliper piston.
  3. Remove the piston boot from the piston.

    4. Discard the piston boot.

  4. Wrap tape on a flat blade tool.

    5. Object Number: 2014096 Size: SH
  5. Use a taped flat blade tool (1) in order to remove the piston seal from the caliper.

    6. Discard the piston seal.

  6. Remove the bleeder valve cap.
  7. Remove the bleeder valve.

Inspection Procedure

    Object Number: 2014068 Size: SH
  1. Clean the caliper housing (1) and the caliper piston (3) in denatured alcohol or an equivalent brake parts cleaner:
  2. Dry the components and all the passages in the caliper housing using unlubricated, compressed air.
  3. Inspect the piston bore and the slide pin bores of the caliper for damage, wear or corrosion. Replace the caliper assembly if damage, wear or corrosion is evident.
  4. Inspect the piston and the caliper housing for damage, wear or corrosion. Replace the components if damage, wear or corrosion is evident.

Assembly Procedure

    Note: Do not tighten the bleeder valve yet. Tighten the bleeder valve after installing the caliper and bleeding the brake system.

  1. Install the bleeder valve to the caliper.
  2. Install the bleeder valve cap.

    3. Object Number: 2014068 Size: SH
  3. Apply lithium soap base glycol grease to the NEW piston seal (2).
  4. Install the piston seal into the groove of the piston bore. Verify the seal is not twisted.

    5. Object Number: 2014100 Size: SH
  5. Apply lithium soap base glycol grease to the NEW piston boot (1).
  6. Apply lithium soap base glycol grease to the caliper piston.
  7. Install the piston boot to the piston.
  8. Lubricate the caliper bore and the NEW set ring with Delco Supreme 11 brake fluid, GM P/N 12377967 (Canadian P/N 992667), or an equivalent DOT 3 brake fluid.

    9. Object Number: 2014104 Size: SH
  9. Install the seal portion of the piston boot (1) to the grooves (2) in the piston bore.

    10. Object Number: 2014108 Size: SH
  10. Use a commercially available caliper piston tool (1) in order to turn and install the piston into the caliper bore. Turn the piston in as far as possible.

    11. Object Number: 2014111 Size: SH
  11. Turn the piston in order to align the piston groove 90 degrees (a) from a line between the caliper slide pin bores.

    12. Align the piston groove with the protrusion on the brake pad.


    Object Number: 2014113 Size: SH
  12. Ensure the piston boot (1) is installed in the groove of the piston and in the groove of the piston bore.
  13. Install the caliper to the vehicle. Refer to Rear Brake Caliper Replacement.