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Home >> Chevrolet >> 2007 >> Chevy Express G3500, Van Passenger Extended >> Repair and Diagnosis >> Brakes >> Anti-Lock Brake System, Traction Control System & Stability Control System >> Repair Instructions >> Brake Pressure Modulator Valve Replacement (w/JL4) >> Removal Procedure

Removal Procedure

    CAUTION: Refer to Brake Fluid Irritant Caution .
    NOTE: Refer to Brake Fluid Effects on Paint and Electrical Components Notice .
    IMPORTANT: The area around the electric hydraulic control unit (EHCU) MUST be free from loose dirt to prevent contamination of disassembled ABS components.
  1. Thoroughly wash all contaminants from around the EHCU.
  2. Disconnect the electrical harness connectors from the electronic brake control module (EBCM).
    3. IMPORTANT: Make sure that brake lines are tagged and kept in order for proper reassembly.
  3. Disconnect the brake lines from the brake pressure modulator valve (BPMV).
    4. Fig 1: Identifying Electric Hydraulic Control Unit Mounting Bracket To Frame Rail Bolts
    GM1209091Courtesy of GENERAL MOTORS CORP.
  4. Remove the bolts securing the EHCU mounting bracket to the frame rail.
  5. Remove the EHCU from the vehicle.
    6. Fig 2: Identifying Brake Pressure Modulator Valve & Electronic Brake Control Module
    GM1381552Courtesy of GENERAL MOTORS CORP.
  6. Remove the bolts (4) securing the BPMV (1) to the EHCU mounting bracket (3).
  7. Disconnect the 2-way ABS pump motor connector.
    8. IMPORTANT: Do not reuse the EBCM mounting bolts. Always install new bolts.
  8. Remove the bolts from the EBCM (2).
    9. IMPORTANT: Do not use a tool to pry the EBCM or the BPMV. Excessive force will damage the EBCM.
  9. Remove the EBCM (2) from the BPMV (1). Removal may require a light amount of force.
  10. Clean the EBCM to BPMV mounting surfaces with a clean cloth.
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