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Home >> GMC >> 2020 >> Canyon SL >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Hydraulic Brakes >> Repair Instructions >> Brake Master Cylinder Replacement >> Installation Procedure

Installation Procedure

  1. GM4111078Courtesy of GENERAL MOTORS COMPANY

    If removed, install the master cylinder reservoir (1). Brake Master Cylinder Reservoir Replacement 

  2. Bench bleed the master cylinder. Brake Master Cylinder Bench Bleeding 
  3. GM4034352Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Ensure the master cylinder O-ring seal is properly seated in the master cylinder body to prevent vacuum leaks.

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

  4. NOTE:

    Center the power brake booster pushrod in the master cylinder piston.

  5. Install the master cylinder assembly to the power brake booster.
  6. GM3686552Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

    Install 2 NEW master cylinder nuts (1) and tighten to 25 N.m (18 lb ft).

  7. GM3686548Courtesy of GENERAL MOTORS COMPANY

    Connect the master cylinder primary brake pipe fitting (1) and tighten to 45 N.m (33 lb ft).

  8. GM3686546Courtesy of GENERAL MOTORS COMPANY

    Connect the master cylinder secondary brake pipe fitting (1) and tighten to 45 N.m (33 lb ft).

  9. GM3731988Courtesy of GENERAL MOTORS COMPANY

    If equipped with a manual transmission, connect the hydraulic clutch feed hose (1) to the master cylinder reservoir.

  10. Connect the brake fluid level indicator switch electrical connector.
  11. Bleed the hydraulic brake system. Hydraulic Brake System Bleeding (Manual) , or Hydraulic Brake System Bleeding (Pressure) 
  12. Check for brake system leaks.