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Home >> Cadillac >> 2020 >> CT6 V >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Hydraulic Brakes >> Repair Instructions >> Power Vacuum Brake Booster Replacement >> Removal Procedure

Removal Procedure

  1. Place the ignition switch in the OFF position.
  2. Apply and release the brake pedal several times until the brake pedal becomes firm to deplete the power brake booster vacuum reserve.
  3. Instrument Panel Lower Trim Panel Replacement - Left Side - Remove - Instrument Panel Lower Trim Panel Insulator Replacement - Left Side
  4. GM4249216Courtesy of GENERAL MOTORS COMPANY

    Brake Pedal Retainer (1) @ Brake Pedal (2) - Release

  5. Brake Pedal Retainer - Remove and DISCARD
  6. Brake Master Cylinder - Remove - Brake Master Cylinder Replacement (LGX) 
  7. GM4249209Courtesy of GENERAL MOTORS COMPANY

    Disconnect the power vacuum brake booster vacuum sensor electrical connector.

  8. Remove the power vacuum brake booster vacuum sensor (1) and hose assembly and position aside.
  9. GM4249211Courtesy of GENERAL MOTORS COMPANY

    Power Vacuum Brake Booster Bolt (1) - Loosen [2x]

  10. GM4249212Courtesy of GENERAL MOTORS COMPANY

    Power Vacuum Brake Booster (1) - Remove