GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Isuzu 🢒 2000 🢒 Isuzu MD Steel Tilt (F Model) 🢒 Brakes 🢒 Antilock Brake System 🢒 Brake Pressure Modulator Valve Replacement

Removal Procedure
  1. Disconnect the negative battery cable. Refer to Battery Disconnect Caution in Cautions and Notices.
  2. Disconnect the three EBCM electrical connectors.
  3. Disconnect the combination valve electrical connector.
  4. Remove the six brake lines from the BPMV.
  5. Remove the BPMV pump motor electrical connector from the EBCM.

    6. Object Number: 156566 Size: SH
  6. Remove the four T-25 Torx® bolts (1) that fasten the EBCM to the BPMV.
  7. Remove the EBCM (2) from the BPMV (4) Removal may require a light amount of force.

    8. Important: Do not use a tool to pry the EBCM from the BPMV. Excessive force will damage the EBCM.

  8. Remove the three allen bolts (11) which fasten the combination valve to the BPMV.
  9. Remove the combination valve from the BPMV.
  10. Remove the two transfer tubes (13).

    11. Important: Do not reuse the transfer tubes. Always install new transfer tubes when replacing the BPMV.

  11. Remove the three tube adapters (6).
  12. Remove the three BPMV mounting bracket bolts (9).
  13. Remove the BPMV (4) from the EHCU mounting bracket (7).
  14. Clean the BPMV (4) with a clean, dry cloth.

Installation Procedure

Important: Do not reuse the EBCM mounting bolts. Always install new EBCM mounting bolts with the new EBCM.

  1. Install the BPMV (4) onto the EHCU (7) mounting bracket.

    2. Tighten
    Tighten the three BPMV mounting bolts (9) to 9 N·m (7l lb ft).


    Object Number: 184208 Size: SH
  2. Install the three tube adapters (6)

    3. Tighten
    Tighten the tube adapters to 31 N·m (23 lb ft).

    Important: Do not reuse the transfer tubes (13). Always install new transfer tubes when removing the combination valve (12).

  3. Install two new transfer tubes (13) into the combination valve (12).
  4. Install the combination valve (12) onto the BPMV (4).
  5. Install the three combination valve fastening bolts (11).

    6. Tighten
    Tighten the three allen bolts first to 8 N·m (6 lb ft) and then to 12 N·m (12 lb ft).

  6. Install EBCM (2) to BPMV (4).
  7. Install the four new EBCM bolts (1).

    8. Tighten
    Tighten the four bolts to 5 N·m (39 lb in) in an X-pattern.

  8. Connect the BPMV pump motor electrical connector (4) to the EBCM.
  9. Install the EHCU (2) to vehicle.

    10. Object Number: 156566 Size: SH
  10. Connect the three electrical connectors to the EBCM.
  11. Connect the five brake lines to the combination valve.

    12. Tighten
    Tighten the five brake lines to 30 N·m (22 lb ft).

  12. Connect the negative battery cable.
  13. Bleed the brake system. Refer to Automated Bleed Procedure.
  14. Return to A Diagnostic Systems Check.