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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 41 (Hydraulic Brakes) >> Repair Instructions >> Master Cylinder Reservoir Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Master Cylinder Reservoir
    GM363761Courtesy of GENERAL MOTORS CORP.
  1. Inspect the reservoir for cracks or deformation. If found, replace the reservoir.
  2. Clean the reservoir with denatured alcohol, or equivalent.
  3. Dry the reservoir with non-lubricated, filtered air.
  4. Lubricate the new seals and the outer surface area of the reservoir-to-housing barrels with Delco Supreme 11®, GM P/N 12377967 (Canadian P/N 992667), or equivalent DOT-3 brake fluid from a clean, sealed brake fluid container.
  5. Install the lubricated seals, make sure they are fully seated.
  6. Install the reservoir to the master cylinder by pressing the reservoir straight down on the master cylinder until the pin holes are aligned.
    7. Fig 2: Removing Reservoir Retaining Pins
    GM363760Courtesy of GENERAL MOTORS CORP.
  7. Carefully install the reservoir retaining pins to secure the reservoir.
  8. Place the brake fluid level sensor into the reservoir, press into place to secure the sensor retaining tabs.
  9. Remove the master cylinder from the vice.
  10. Install the master cylinder. Refer to Master Cylinder Replacement .
  11. Release the park brake.
  12. Bleed the hydraulic brake system. Refer to Hydraulic Brake System Bleeding (Manual)  or Hydraulic Brake System Bleeding (Pressure) .
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