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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 632 (Anti-Lock Brake System) >> Repair Instructions >> Brake Pressure Modulator Valve (BPMV) Replacement (w/JL4) >> Installation Procedure

Installation Procedure

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  1. Install the pressure accumulator switch to the BPMV. Tighten the switch to 3 N.m (30 lbs in).
    2. Fig 1: Installation Of Pressure Accumulator Switch
    G01664066Courtesy of GENERAL MOTORS CORP.
  2. Install the brake fluid pressure sensor (2) using a backup wrench to keep the brake fluid pressure sensor collar (1) from turning. Tighten the sensor to 16 N.m (12 lbs ft).
    Fig 2: Installation Of Brake Fluid Pressure Sensor & Collar
    G01664067Courtesy of GENERAL MOTORS CORP.
    NOTE: Do not use RTV or any other type of sealant on the EBCM gasket or mating surfaces.
  3. Install the EBCM (2) onto BPMV (1).
  4. Install the four EBCM bolts. Tighten the bolts to 5 N.m (39 lbs in) in an X-pattern.
    NOTE: Do not reuse the old mounting bolts. Always install new EBCM bolts with the new BPMV.
  5. Connect the brake fluid pressure sensor and pressure accumulator switch electrical harnesses.
  6. Install the BPMV (1) to EHCU bracket (3).
  7. Install the BPMV to bracket retaining bolts (4). Tighten the bolts to 9 N.m (7 lbs ft).
    8. Fig 3: Installation Of BPMV To EHCU Bracket
    G01664068Courtesy of GENERAL MOTORS CORP.
  8. Install the EHCU to the vehicle frame (5).
  9. Install the EHCU bracket bolts. Tighten the EHCU bracket bolts (4) to 25 N.m (18 lbs ft).
  10. Connect the 2 electrical harness connectors to the EBCM (1).
    NOTE: 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.
    11. Fig 4: Installation Of Brake Pipes To BPMV
    G01664069Courtesy of GENERAL MOTORS CORP.
  11. Install the brake pipes to the BPMV (2). Tighten the brake pipe fittings to 25 N.m (18 lbs ft).
  12. Bleed the brake system. Refer to MANUAL BLEEDING or PRESSURE BLEEDING in Hydraulic Brakes before proceeding.
  13. Bleed the brake system. Refer to ABS Automated Bleed Procedure (w/JL4)  or ABS Automated Bleed Procedure (w/o JL4)  .
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