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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G3500, VAN PASSENGER EXTENDEDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 137 (ANTI-LOCK BRAKE SYSTEM AND TRACTION CONTROL SYSTEM)REPAIR INSTRUCTIONSBRAKE PRESSURE MODULATOR VALVE REPLACEMENTREMOVAL PROCEDURE
2008 Chevrolet Chevy Express G3500, Van Passenger Extended

Removal Procedure

2008 Chevrolet Chevy Express G3500, Van Passenger ExtendedSECTION Removal Procedure
WARNING: This page is about a different car, the 2008 Chevrolet Malibu Classic. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Electrical Connector At EBCM
    GM1233230Courtesy of GENERAL MOTORS CORP.
  1. Turn the ignition switch to the OFF position.
  2. Clean the brake modulator assembly pipe fitting areas of any accumulated dirt and foreign material.
  3. Disconnect the electrical connector from the electronic brake control module (EBCM).
  4. Remove the EBCM. Refer to Electronic Brake Control Module Replacement .
    5. Fig 2: View Of Brake Pipes At Brake Pressure Modulator Valve (BPMV)
    GM1234780Courtesy of GENERAL MOTORS CORP.
  5. Place a shop towel under the brake modulator assembly to catch any brake fluid loss.
    6. IMPORTANT: Prior to disconnecting the brake pipes from the ABS modulator assembly, note the locations of the brake pipes to the valve assembly, to aid during installation.
  6. Disconnect the 4 brake pipes (2) from the brake pressure modulator valve (BPMV).
  7. Cap the brake pipe ends to prevent brake fluid loss and contamination.
  8. Disconnect the master cylinder brake pipes (1) from the BPMV.
  9. Cap the brake pipe ends to prevent brake fluid loss and contamination.
  10. Plug the modulator brake pipe openings to prevent brake fluid loss and contamination.
    11. Fig 3: View Of Insulator Bolts On Brake Pressure Modulator Valve Bracket
    GM1234794Courtesy of GENERAL MOTORS CORP.
  11. Remove the 4 insulator bolts on the brake pressure modulator valve bracket.
  12. Remove the brake modulator valve from modulator bracket by pulling straight up.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.