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Home >> Buick >> 2020 >> Regal GS >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Hydraulic Brakes >> Repair Instructions >> Power Brake Booster Replacement >> Installation Procedure

Installation Procedure

  1. GM4239848Courtesy of GENERAL MOTORS COMPANY

    Position the power brake booster in the vehicle.

  2. NOTE:

    Assistant required.

  3. Perform the following to engage the brake pedal retainer.
    1. GM4234245Courtesy of GENERAL MOTORS COMPANY

      Brake Pedal Retainer (1) - Install NEW

    2. NOTE:

      Ensure the locking tabs on the brake pedal retainer are fully engaged in the brake pedal assembly.

    3. Slowly have an assistant push the power brake booster toward the cowl panel until the brake pedal retainer fully engages the brake pedal assembly.
  4. GM4239846Courtesy of GENERAL MOTORS COMPANY

    Power Brake Booster Bolt (1) - Tighten 19 N.m (14 lb ft) [2x]

  5. GM4851357Courtesy of GENERAL MOTORS COMPANY

    Electronic Traction Control Brake Pressure Modulator Valve - Install - Electronic Brake and Traction Control Module with Brake Pressure Modulator Valve Replacement , or Electronic Brake and Traction Control Module with Brake Pressure Modulator Valve Replacement (LGX)

  6. GM4234608Courtesy of GENERAL MOTORS COMPANY

    Brake Master Cylinder - Install - Brake Master Cylinder Replacement 

  7. GM4213869Courtesy of GENERAL MOTORS COMPANY

    Brake Pressure Modulator Valve Primary Pipe (1) - Install - Brake Pressure Modulator Valve Primary Pipe Replacement (LTG) , or Brake Pressure Modulator Valve Primary Pipe Replacement (LGX) 

  8. GM4213865Courtesy of GENERAL MOTORS COMPANY

    Brake Pressure Modulator Valve Secondary Pipe (1) - Install - Brake Pressure Modulator Valve Secondary Pipe Replacement (LTG) , or Brake Pressure Modulator Valve Secondary Pipe Replacement (LGX) 

  9. GM4420352Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    A small amount of denatured alcohol may be used to ease assembly.

    Power Brake Booster Vacuum Sensor (1) - Install

  10. Power Brake Booster Vacuum Sensor Electrical Connector - Connect
  11. GM4420258Courtesy of GENERAL MOTORS COMPANY

    Power Brake Booster Vacuum Pipe (1) @ Power Brake Booster Vacuum Sensor - Connect

  12. Reposition and install the radiator surge tank. Radiator Surge Tank Replacement