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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 63 (Hydraulic Brake System) >> Repair Instructions >> Power Brake Booster Pump Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2016 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Apply the brake pedal several times until the pedal becomes firm to deplete the power vacuum brake booster vacuum reserve.
  2. Intake Manifold Cover Replacement (LF4)Intake Manifold Cover Replacement (LGX) - Remove
  3. Air Cleaner Outlet Front Duct Replacement (LF4) - Remove
  4. Disconnect the power brake booster pump electrical connector.
    5. Fig 1: Power Brake Booster Vacuum Hose Quick Connect
    GM4015331Courtesy of GENERAL MOTORS COMPANY
  5. Power Brake Booster Vacuum Hose Quick Connect @ Vacuum Pump - Disconnect
  6. Vacuum Hose @ Engine Mount - Disconnect
  7. Position aside the power brake booster vacuum hose assembly.
    8. Fig 2: Power Brake Booster Pump M6 Bolt
    GM4015342Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Radiator hose not shown for clarity.

  8. Power Brake Booster Pump M6 Bolt - Remove
    9. Fig 3: Power Brake Booster Pump M12 Bolt
    GM4015420Courtesy of GENERAL MOTORS COMPANY
  9. Power Brake Booster Pump M12 Bolt - Remove
  10. Power Brake Booster Pump - Remove
    11. Fig 4: Power Brake Booster Pump Bolt
    GM4015426Courtesy of GENERAL MOTORS COMPANY
  11. Power Brake Booster Pump Bolt - Remove
  12. Power Brake Booster PumpNut - Remove
    13. Fig 5: Power Brake Booster Pump Bracket
    GM4015506Courtesy of GENERAL MOTORS COMPANY
  13. Power Brake Booster Pump Bracket - Remove
    14. Fig 6: Power Brake Booster Pump Spacer
    GM4015664Courtesy of GENERAL MOTORS COMPANY
  14. Power Brake Booster Pump Spacer - Remove
    15. Fig 7: Power Brake Booster Pump Insulator
    GM4015742Courtesy of GENERAL MOTORS COMPANY
  15. Power Brake Booster Pump Insulator - Remove
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