LEMON Manuals: Even more car manuals for everyone
Home >> Cadillac >> 2019 >> XTS Platinum, AWD >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Hydraulic Brakes >> Repair Instructions >> Brake Master Cylinder Replacement (J55) >> Removal Procedure

Removal Procedure

WARNING:

Refer to Brake Fluid Irritant Warning .

  1. Turn the ignition switch to the OFF position.
  2. Apply and release the brake pedal several times until the brake pedal becomes firm to deplete the power vacuum brake booster vacuum reserve.
  3. Using a suitable tool, remove and properly dispose of the brake fluid from the master cylinder reservoir.
  4. Without draining the coolant and without disconnecting the hoses, position aside the radiator surge tank. Refer to Radiator Surge Tank Replacement (LFX, LF3) .
  5. Disconnect the brake fluid level indicator switch electrical connector.
  6. GM2753356Courtesy of GENERAL MOTORS COMPANY

    Disconnect the master cylinder secondary brake pipe fitting (1).

  7. Cap the brake pipe fitting to prevent brake fluid loss and contamination.
  8. GM2753358Courtesy of GENERAL MOTORS COMPANY

    Disconnect the master cylinder primary brake pipe fitting (1).

  9. Cap the brake pipe fitting to prevent brake fluid loss and contamination.
  10. GM2753362Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Do not reuse the master cylinder nuts.

    Remove and discard the master cylinder nuts (1).

  11. GM2738633Courtesy of GENERAL MOTORS COMPANY

    Remove the master cylinder (1).

  12. GM2753364Courtesy of GENERAL MOTORS COMPANY

    Remove the master cylinder O-ring seal (1).