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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1941 (Hydraulic Brake System) >> Repair Instructions >> Brake Delay Valve 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.
  1. Turn the ignition switch to the OFF position.
  2. Remove the 12V battery. Refer to Battery Replacement .
  3. Without draining the coolant or removing the hoses, remove and position aside the radiator surge tank. Refer to Radiator Surge Tank Replacement .
  4. Fig 1: Brake Delay Valve Electrical Connector
    GM1878315Courtesy of GENERAL MOTORS CORP.
  5. Disconnect the brake delay valve electrical connector (1).
  6. Fig 2: Primary Brake Pipe Inlet/Outlet Fitting
    GM1878316Courtesy of GENERAL MOTORS CORP.
  7. Loosen, but do not remove, the primary brake pipe fitting at the master cylinder pressure sensor mounting block.
  8. Disconnect the primary brake pipe inlet fitting (1) at the brake delay valve.

    Rotate the brake pipe aside and cap the brake pipe fitting to prevent brake fluid loss and contamination.

  9. Fig 3: Secondary Brake Pipe Inlet Fitting
    GM1878318Courtesy of GENERAL MOTORS CORP.
  10. Loosen, but do not remove, the secondary brake pipe fitting at the master cylinder.
  11. Disconnect the secondary brake pipe inlet fitting (1) at the brake delay valve.

    Rotate the brake pipe aside and cap the brake pipe fitting to prevent brake fluid loss and contamination.

  12. Fig 4: Primary Brake Pipe Outlet Fitting
    GM1878319Courtesy of GENERAL MOTORS CORP.
  13. Loosen, but do not remove, the primary brake pipe fitting at the brake pressure modulator valve (BPMV).
  14. Disconnect the primary brake pipe outlet fitting (1) at the brake delay valve.

    Rotate the brake pipe aside and cap the brake pipe fitting to prevent brake fluid loss and contamination.

  15. Fig 5: Secondary Brake Pipe Outlet Fitting
    GM1878321Courtesy of GENERAL MOTORS CORP.
  16. Loosen, but do not remove, the secondary brake pipe fitting at the BPMV.
  17. Disconnect the secondary brake pipe outlet fitting (1) at the brake delay valve.

    Rotate the brake pipe aside and cap the brake pipe fitting to prevent brake fluid loss and contamination.

  18. Fig 6: Brake Delay Valve Bolts
    GM1878323Courtesy of GENERAL MOTORS CORP.
  19. Remove the 2 brake delay valve bolts (1).
  20. Remove the brake delay valve.