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HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA RWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1680 (ANTILOCK BRAKE SYSTEM)REPAIR INSTRUCTIONSBRAKE MODULATOR ASSEMBLY REPLACEMENTREMOVAL PROCEDURE
2004 Oldsmobile Bravada RWD

Removal Procedure

2004 Oldsmobile Bravada RWDSECTION Removal Procedure
WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Transmission Control Module
    GM927845Courtesy of GENERAL MOTORS CORP.
  1. Turn the ignition switch to the OFF position.
  2. Remove the transmission control module (TCM), if equipped, from the mounting bracket and position aside.
    3. Fig 2: Disconnecting/Connecting Electrical Connector From Electronic Brake Control Module (EBCM)
    GM927847Courtesy of GENERAL MOTORS CORP.
  3. Clean the brake modulator assembly pipe fitting areas of any accumulated dirt and foreign material.
  4. Disconnect the electrical connector from the electronic brake control module (EBCM).
    5. Fig 3: Removing Plugs From Master Cylinder Ports On Modulator Assembly
    GM927833Courtesy 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 antilock brake system (ABS) modulator assembly, note the locations of the brake pipes to the valve assembly, to aid during installation.
  6. Disconnect the caliper and wheel cylinder brake pipes 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 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 4: ABS Brake Modulator Assembly & Bracket
    GM927841Courtesy of GENERAL MOTORS CORP.
  11. Loosen the 2 insulator nuts on the brake pressure modulator valve assembly.
  12. Remove the brake modulator assembly 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.