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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Hydraulic Brakes >> Repair Instructions >> Master Cylinder Reservoir Replacement >> Tools Required >> Removal Procedure

Removal Procedure

    Fig 1: Identifying Brake Master Cylinder And Power Brake Booster Assembly
    GM1977780Courtesy of GENERAL MOTORS CORP.
  1. Using a suitable tool, remove the brake fluid from the master cylinder reservoir.

    Discard the brake fluid into an approved container.

  2. Remove the brake master cylinder and power brake booster assembly. Refer to Brake Master Cylinder with Power Brake Booster and Chassis Control Module Replacement .
  3. Install the CH-47830  (1) to the master cylinder assembly.
  4. Position the CH-47830  with the master cylinder assembly in a vise.
    5. Fig 2: Identifying Brake Fluid Level Sensor Electrical Connector
    GM1977781Courtesy of GENERAL MOTORS CORP.
  5. Release the brake fluid level sensor electrical connector (1) from the sensor bracket.
    6. Fig 3: Identifying Master Cylinder Reservoir Roll Pin
    GM1977782Courtesy of GENERAL MOTORS CORP.
  6. Remove the master cylinder reservoir roll pin (1).
    7. Fig 4: Identifying Master Cylinder Reservoir Bolt
    GM1977783Courtesy of GENERAL MOTORS CORP.
  7. Remove the master cylinder reservoir bolt (1).
    8. Fig 5: View Of Power Brake Booster Inlet Hose Clamp And Master Cylinder Reservoir
    GM1977784Courtesy of GENERAL MOTORS CORP.
  8. Release the power brake booster inlet hose clamp (1), disconnect the hose and remove the master cylinder reservoir (2).
  9. Remove the 2 master cylinder reservoir grommets from the master cylinder, if necessary.
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