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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 787 (Antilock Brake System With TCVS & VSES) >> Repair Instructions >> Brake Pressure Modulator Valve (BPMV) Replacement (w/JL4) >> Installation Procedure

Installation Procedure

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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).

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

    2. Fig 1: Installing Bolts Securing BPMV To EHCU Mounting Bracket (w/JL4)
    G01457145Courtesy of GENERAL MOTORS CORP.
  2. Install the EBCM bolts (1).
    NOTE: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

    Tighten 

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

  3. Install the BPMV (3) to EHCU bracket (5).
  4. Install the BPMV to bracket retaining bolts (4).

    Tighten 

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

  5. Install the EHCU to the vehicle frame (5).
  6. Install the EHCU bracket bolts.

    Tighten 

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

  7. Connect the electrical connectors to the EBCM (1).

    Important:  The brake pipes are held in place by a plastic bracket mounted to the frame. Make sure that the brake pipes stay in the correct place for proper reassembly.

    8. Fig 2: Connecting Brake Lines To Brake Pressure Modulator Valve (BPMV) (w/JL4)
    G01457146Courtesy of GENERAL MOTORS CORP.
  8. Install the brake pipes to the BPMV (2).

    Tighten 

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

  9. Bleed the brake system using the ABS Automated Bleed Procedure (W/JL4). Refer to ABS AUTOMATED BLEED PROCEDURE (W/O JL4)  or ABS AUTOMATED BLEED PROCEDURE (W/JL4)  .
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