FixVault

Disassembly Procedure

WARNING: This page is about a different car, the 2005 Saturn L300. However, it is still accessible from the selected car via links, so may be relevant.
    CAUTION: Refer to Brake Fluid Irritant Caution in Cautions and Notices.
    Fig 1: Removing Piston From Caliper Body
    GM893564Courtesy of GENERAL MOTORS CORP.
  1. Remove the piston from the caliper body by applying low pressure, non-lubricated, compressed air into the caliper inlet hole.
  2. Fig 2: Removing Caliper Dust Boot Seal
    GM893563Courtesy of GENERAL MOTORS CORP.
  3. Using a small wooden or plastic tool, remove the caliper dust boot seal from the caliper.
  4. CAUTION: To prevent bodily injury, make sure to keep fingers or other body parts away from piston during removal.
    NOTE: Pad interior of caliper body to provide a protective cushion for piston when it exits the caliper. This will protect piston from surface damage caused from piston/caliper body contact.
    NOTE: To prevent damage to caliper body bore, use a small wooden or plastic (not metal) device to extract seal.
  5. Remove the piston seal from the groove in the caliper.
  6. Remove the bleeder valve and the bleeder valve cap from the caliper body.
  7. Clean all parts in clean denatured alcohol. Dry with non-lubricated, low pressure, compressed air. Make sure to blow out all passages in the caliper body and the bleeder valve.
  8. Fig 3: Inspecting Caliper Body Piston Bore
    GM891858Courtesy of GENERAL MOTORS CORP.
  9. Inspect the piston for scoring, nicks, cracks, wear or corrosion. Replace the piston if any damage is found.
  10. Inspect the caliper body piston bore for scoring, nicks, wear, or corrosion. Crocus cloth can be used to remove light corrosion. If more extensive damage is present, replace the caliper.
  11. IMPORTANT: Do not hone the caliper bore.
  12. Inspect the seal groove in the caliper bore for nicks or burrs. If present, replace the caliper.