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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 258 (Hydraulic Brakes) >> Repair Instructions >> Brake Master Cylinder Replacement - With Power Brake Booster and Electronic Brake Control Module (without MJK) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.
  1. GM5880984Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

    Install a NEW brake pedal retainer (1) to the brake pedal.

  2. Ensure the locking tabs on the brake pedal retainer are fully engaged in the brake pedal.
  3. Lubricate the brake master cylinder reservoir grommets with GM approved brake fluid from a clean, sealed brake fluid container. Adhesives, Fluids, Lubricants, and Sealers 
  4. GM5883040Courtesy of GENERAL MOTORS COMPANY

    Brake Master Cylinder Reservoir Grommet (1) - Install NEW [3x]

  5. GM5883039Courtesy of GENERAL MOTORS COMPANY

    Secure the rear of the brake master cylinder reservoir (1) to the brake master cylinder and lower the front until it is fully installed.

  6. CAUTION:

    Refer to Fastener Caution .

  7. Brake Master Cylinder Reservoir Bolt (2) - Install and tighten - Brake Master Cylinder Reservoir Replacement (without MJK) 
  8. GM5493276Courtesy of GENERAL MOTORS COMPANY

    Brake Master Cylinder (1) - Install

  9. GM5324653Courtesy of GENERAL MOTORS COMPANY

    Brake Master Cylinder Nut (1) - Install and tighten [2x] 25 N.m (18 lb ft)

  10. GM5880985Courtesy of GENERAL MOTORS COMPANY

    Engage the brake pedal (1) to the brake master cylinder push rod by pushing inwards.

  11. Ensure the brake pedal retainer is secured by lightly pulling rearward on the brake pedal (1).
  12. Instrument Panel Lower Trim Panel Insulator - Install - Instrument Panel Lower Trim Panel Insulator Replacement - Left Side
  13. GM5324657Courtesy of GENERAL MOTORS COMPANY

    Remove the plugs from the brake master cylinder ports and the brake pipes.

  14. Brake Master Cylinder Nut (1) - Install and tighten [4x] - Brake Pressure Modulator Valve Pipe Replacement 
  15. GM5324655Courtesy of GENERAL MOTORS COMPANY

    Electrical Connector (1) @ Brake System Control Module - Connect

  16. GM5491702Courtesy of GENERAL MOTORS COMPANY

    Electrical Connector (1) @ Brake Fluid Level Sensor - Connect

  17. Front End Sheet Metal Cross Brace - Install - Front End Sheet Metal Cross Brace Replacement (Impact Bar Bracket) , or Front End Sheet Metal Cross Brace Replacement (Plenum without Blackwing) , or Front End Sheet Metal Cross Brace Replacement (Plenum with Blackwing)
  18. Connect the battery negative cable. Battery Negative Cable Disconnection and Connection
  19. Perform the necessary programming and setup procedure: Control Module References
  20. Bleed the brake system. Hydraulic Brake System Bleeding (J57, J6H, JL9) , or Hydraulic Brake System Bleeding (J56) 
  21. Check the brake system for leaks.
  22. Check for brake system leaks.