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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1576 (Hydraulic Brake System) >> Repair Instructions >> Master Cylinder Replacement (Two-Mode Hybrid) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Bench bleed the master cylinder. Refer to Master Cylinder Bench Bleeding (Non-Hybrid)  or Master Cylinder Bench Bleeding (Two-mode Hybrid) .
    2. Fig 1: Brake Master Cylinder & Master Cylinder Seal
    GM1892241Courtesy of GENERAL MOTORS CORP.
    NOTE: Ensure the brake master cylinder seal is fully seated in the groove on the master cylinder housing.
  2. Install the brake master cylinder seal (1) and the master cylinder to the adapter.
    3. Fig 2: Brake Master Cylinder Nuts
    GM1892240Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Fastener Caution .
  3. Install 2 new brake master cylinder nuts (1).

    Tighten:  Tighten the nuts to 33 N.m (24 lb ft).

    4. Fig 3: Brake Master Cylinder Left Front Brake Pipe Fitting
    GM1892220Courtesy of GENERAL MOTORS CORP.
    NOTE: Install the brake pipes in the same location as noted during removal.
  4. Install the 4 brake master cylinder brake pipe fittings (1).

    Tighten:  Tighten the fitting to 30 N.m (22 lb ft).

    5. Fig 4: Brake Master Cylinder Left Supply Brake Pipe Fitting
    GM1892202Courtesy of GENERAL MOTORS CORP.
  5. Connect the brake master cylinder left supply brake pipe fitting (1).

    Tighten:  Tighten the fitting to 30 N.m (22 lb ft).

    6. Fig 5: Brake Master Cylinder Primary Brake Pipe Fitting
    GM1892200Courtesy of GENERAL MOTORS CORP.
  6. Connect the brake master cylinder primary brake pipe fitting (1).

    Tighten:  Tighten the fitting to 30 N.m (22 lb ft).

    7. Fig 6: Master Cylinder Reservoir Return Hose Quick Connect & Supply Hose Quick Connect
    GM1892190Courtesy of GENERAL MOTORS CORP.
  7. Connect the brake master cylinder reservoir return hose quick connect (1).
  8. Connect the brake master cylinder reservoir supply hose quick connect (2).
  9. Connect the brake fluid level sensor electrical connector.
  10. Fill the brake master cylinder reservoir. Refer to Master Cylinder Reservoir Filling (Non-Hybrid)  or Master Cylinder Reservoir Filling (Two-mode Hybrid) .
  11. Bleed the hydraulic brake system. Refer to Hydraulic Brake System Bleeding (Manual)  or Hydraulic Brake System Bleeding (Pressure)  or Hydraulic Brake System Bleeding (Two-mode Hybrid) .
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