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Home › GMC › 2007 › Sierra Classic 1500 HD, RWD › Repair and Diagnosis › Brakes › Anti-Lock Brake System & Traction Control System › Repair Instructions › Brake Pressure Modulator Valve Replacement › Installation Procedure

Installation Procedure

Fig 1: View Of EBCM And BPMV Mounting Screws
GM924301Courtesy of GENERAL MOTORS CORP.
IMPORTANT: Do not use RTV or any other type of sealant on the EBCM gasket or mating surfaces.
  1. Install the EBCM (2) onto BPMV (3).
    NOTE: Refer to Fastener Tightening Specifications 
    IMPORTANT: Do not reuse the old mounting bolts. Always install new bolts with the new BPMV.
  2. Install the 4 EBCM bolts.

    Tighten:  Tighten the 4 bolts to 5 N.m (39 lb in) in an X-pattern.

  3. Connect the 2-way ABS pump motor connector to the EBCM.
  4. Install the BPMV (3) to BPMV bracket (5).
  5. Install the BPMV to bracket retaining bolts (4).

    Tighten:  Tighten the bolts to 9 N.m (7 lb ft).

    Fig 2: View Of EBCM/EHCU Assembly
    GM379478Courtesy of GENERAL MOTORS CORP.
  6. Install the EHCU assembly (1, 2) to the vehicle frame (5).

    Tighten:  Tighten the 3 EHCU bracket bolts (4) to 25 N.m (18 lb ft).

  7. Connect the chassis electrical harness connectors to the EBCM (1).
    IMPORTANT: The brake pipes are held in the proper place by a frame mounted plastic bracket. Make sure that the brake pipes stay in the correct place for proper reassembly.
  8. Install the 5 brake pipes to the BPMV (6).

    Tighten:  Tighten the brake pipe fittings to 25 N.m (18 lb ft).

  9. Connect negative battery cable.
  10. Bleed the brake system. Refer to Antilock Brake System Automated Bleed Procedure .
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