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HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA RWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1834 (HYDRAULIC BRAKE SYSTEM)REPAIR INSTRUCTIONSPROPORTIONING VALVE REPLACEMENTREMOVAL PROCEDURE
2004 Oldsmobile Bravada RWD

Removal Procedure

2004 Oldsmobile Bravada RWDSECTION Removal Procedure
WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Removing/Installing Transaxle Control Module (TCM)
    GM931336Courtesy of GENERAL MOTORS CORP.
  1. Without disconnecting the electrical connectors, remove the transmission control module (TCM) if equipped from the bracket and position aside on top of the engine. Refer to Transmission Control Module Replacement (2.2L (L61)) or Transmission Control Module Replacement (2.4L (LAT)) for the 4T45-E transaxle.
    2. Fig 2: View Of Brake Pipes At Proportioning Valve Assembly
    GM931398Courtesy of GENERAL MOTORS CORP.
  2. Place a shop towel under the proportioning valve assembly to catch any brake fluid loss.
    3. IMPORTANT: Prior to disconnecting the brake pipes from the proportioning valve assembly, note the locations of the brake pipes to the valve assembly, to aid during installation.
  3. Disconnect the caliper and wheel cylinder brake pipes from the proportioning valve assembly.
  4. Cap or plug the brake pipe ends to prevent brake fluid loss and contamination.
  5. Disconnect the master cylinder brake pipes from the proportioning valve assembly.
  6. Cap or plug the brake pipe ends to prevent brake fluid loss and contamination.
  7. If the proportioning valve is to be reused, plug the ports to prevent brake fluid loss and contamination.
    8. Fig 3: Removing/Installing Proportioning Valve Assembly
    GM926605Courtesy of GENERAL MOTORS CORP.
  8. Remove the proportioning valve mounting bolts.
    9. IMPORTANT: Do not exert excessive force on the brake pipes.
  9. Remove the proportioning valve from the vehicle while carefully repositioning the brake pipes.
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.