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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 477 (Hydraulic Brake System) >> Repair Instructions >> Power Brake Booster Vacuum Check Valve and Hose Replacement >> Installation Procedure

Installation Procedure

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    Fig 1: Brake Booster Check Valve And Hose Assembly
    GM2277636Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    A small amount of denatured alcohol may be used to ease assembly, if necessary.

  1. Install the vacuum brake booster check valve and hose assembly (1) and secure the clamp.
  2. Fig 2: Power Brake Booster Vacuum Sensor
    GM2277629Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    A small amount of denatured alcohol may be used to ease assembly, if necessary.

  3. Install the vacuum sensor with check valve and hose assembly (1) to the power vacuum brake booster.
  4. Connect the electrical connector to the vacuum sensor.
  5. Install the upper intake manifold sight shield. Refer to Upper Intake Manifold Sight Shield Replacement .