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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1407 (ANTILOCK BRAKE SYSTEM AND TRACTION CONTROL SYSTEM)REPAIR INSTRUCTIONSBRAKE PRESSURE MODULATOR VALVE (BPMV) REPLACEMENTREMOVAL PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Removal Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Removal Procedure
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of EBCM/BPMV
    GM778051Courtesy of GENERAL MOTORS CORP.
  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the electronic brake control module (EBCM) from the vehicle. Refer to Brake Pressure Modulator Valve (BPMV) Replacement .
    3. IMPORTANT: In the following service procedures, insert rubber plugs or caps on the exposed brake pipe fittings to prevent brake fluid loss and contamination.
  3. Remove the left front brake pipe.
    4. Fig 2: Locating Right Front Brake Pipe
    GM778058Courtesy of GENERAL MOTORS CORP.
  4. Remove the right front brake pipe.
    5. Fig 3: Locating Rear Brake Pipe
    GM778046Courtesy of GENERAL MOTORS CORP.
  5. Remove the rear brake pipe.
    6. Fig 4: Master Cylinder Brake Pipes
    GM778043Courtesy of GENERAL MOTORS CORP.
  6. Remove the brake pipe to the brake master cylinder.
RENDER: 1.0x

NO RELATED

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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.