GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Caution: Refer to Battery Disconnect Caution in the Preface section.


    Object Number: 1674676  Size: SH

    Notice: Do not allow calipers to hang from the flexible hoses. Doing so can damage the hoses.

    Important: To guarantee uniform braking on both sides, both rotors must have identical surfaces regarding smoothness and scoring depth. For this reason, always replace both rotors.

  1. Disconnect the negative battery cable.
  2. Remove the cooling surge tank. Refer to Radiator Surge Tank Replacement .
  3. Disconnect the ABS wiring harness connector from the socket on the electronic brake control module (EBCM).
  4. Cover the connector and the socket with shop cloths to protect them from brake fluid.
  5. Important: Take care not to allow air into the brake pressure modulator valve or into the brake pipes from the master cylinder. If air gets into the brake pressure modulator valve, it will require a bleeding procedure using a scan tool programmed for the ABS system. As long as no air enters the brake pressure modulator valve, a simple bleeding procedure is all the system will require.

  6. Remove the brake pipes fitting nuts from the brake pressure modulator valve (BPMV).

  7. Object Number: 1674677  Size: SH
  8. Remove the mounting bracket bolts on the BPMV.
  9. Remove the BPMV assembly.

Installation Procedure


    Object Number: 1674677  Size: SH
  1. Install the BPMV assembly.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the mounting bracket bolts on the BPMV.
  4. Tighten
    Tighten the bolts to 22 N·m (16 lb ft).


    Object Number: 1674676  Size: SH
  5. Install the brake pipes fitting onto the BPMV.
  6. Tighten
    Tighten the nuts to 16 N·m (12 lb ft).

  7. Connect the ABS wiring harness connector to the socket on the EBCM.
  8. Install the cooling surge tank. Refer to Radiator Surge Tank Replacement .
  9. Connect the negative battery cable.
  10. Add new brake fluid.
  11. Bleed the brake system.
  12. Inspect the brake system for leaks.
  13. Refer to Control Module References for programming and setup information.