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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1647 (Hydraulic Brake System) >> Repair Instructions >> Brake Master Cylinder Reservoir Hose Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
WARNING: Refer to Brake Fluid Irritant Warning .
    NOTE: The ignition must be in the OFF position, without pausing at ACCESSORY, and without applying the brake pedal to ensure the brake modulator and high pressure accumulator (HPA) pressure relief occurs. This process will take approximately 1 to 3 minutes.
  1. Turn the ignition to OFF, without pausing at ACCESSORY, and remove the ignition key.
  2. NOTE: During the pressure relief process, the fluid level in the master cylinder reservoir will rise. Do not remove the master cylinder reservoir cap during the pressure relief process.
  3. Wait approximately 1 to 3 minutes until the brake modulator and HPA pressure relief is complete.
  4. Remove the brake fluid from the brake master cylinder reservoir until the level is below the reservoir supply hose fitting and discard into an approved container.
  5. Fig 1: Brake Master Cylinder Reservoir Supply And Return Hose Quick Connect Fittings
    GM2193334Courtesy of GENERAL MOTORS CORP.
  6. Disconnect the brake master cylinder reservoir supply hose quick connect (1).
  7. Disconnect the brake master cylinder reservoir return hose quick connect (2).
  8. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  9. Clean all dirt and debris from the brake pressure modulator valve (BPMV) assembly and the brake hose fittings.
  10. Fig 2: BPMV Supply And Return Hose Quick Connect Fittings
    GM2192967Courtesy of GENERAL MOTORS CORP.
  11. Disconnect the BPMV supply hose quick connect (1).

    Cap the BPMV inlet port and plug the supply hose to prevent brake fluid loss and contamination.

  12. Disconnect the BPMV return hose quick connect (2).

    Cap the BPMV outlet port and plug the return hose to prevent brake fluid loss and contamination.

  13. Release the supply and return hoses from the retainers and remove the hoses from the vehicle.