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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 >> Brake Pedal Assembly Replacement (J90, J95, J96, JH6, Two-mode Hybrid) >> Installation Procedure

Installation Procedure

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  1. Apply a thin coat of high temperature grease GM P/N 12345996 (Canadian P/N 10953501) to the following areas:
    • The bushing side of the brake pedal pivot hub between the brake pedal arm and the pivot hub flange.
    • The inner diameter of the brake pedal assist spring bushing and both sides of the bushing flange.
    • The inner diameter of the brake pedal return assist spring.
    • The 90 degree end and the hook end of the brake pedal return assist spring.
    2. Fig 1: Brake Pedal Return Assist Spring Bushing
    GM2745424Courtesy of GENERAL MOTORS COMPANY
  2. Install the brake pedal return assist spring bushing (1) to the brake pedal pivot hub by slightly spreading the bushing and positioning the bushing flange against the brake pedal arm.
    3. Fig 2: Pedal Return Assist Spring
    GM2745457Courtesy of GENERAL MOTORS COMPANY
  3. Install the brake pedal return assist spring (1) to the brake pedal pivot hub with the hook end of the spring against the driver side edge of the brake pedal arm.
  4. Apply a thin coat of high temperature grease GM P/N 12345996 (Canadian P/N 10953501) to the brake pedal pivot bolt shoulder.
    5. Fig 3: Brake Pedal
    GM2716609Courtesy of GENERAL MOTORS COMPANY
  5. With the brake pedal return assist spring resting on the driver side of the brake pedal arm, install the brake pedal (1).
    6. Fig 4: Brake Pedal Pivot Bolt
    GM2716608Courtesy of GENERAL MOTORS COMPANY
  6. Install the brake pedal pivot bolt (1).
  7. Clean the brake pedal pivot bolt threads of any grease after the bolt is inserted through the brake pedal pivot.
  8. Apply medium strength threadlocker-blue GM P/N 12345382 (Canadian P/N 10953489) to the brake pedal pivot bolt threads.
    9. Fig 5: Brake Pedal Pivot Nut
    GM2716607Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

  9. While holding the brake pedal pivot bolt stationary, install the brake pedal pivot nut (1) and tighten to 26 N.m (19 lb ft).
    10. Fig 6: Pedal Assist Return Spring And Brake Pedal Arm
    GM2745464Courtesy of GENERAL MOTORS COMPANY
  10. Loosely assemble a tie strap to the hook end of the brake pedal return assist spring.
  11. Using the tie strap, pull and hook the brake pedal assist return spring (1) into position against the leading edge of the brake pedal arm.
  12. Remove and discard the tie strap.
  13. With the power brake booster pushrod disconnected, inspect the brake pedal return assist spring function by pressing the brake pedal until it is parallel with the accelerator pedal and releasing.
  14. Ensure the brake pedal returns to the at rest position.
  15. Apply a thin coat of high temperature lubricant, GM P/N 12345996 (Canadian P/N 10953501) to the brake pedal pivot pin.
  16. Connect the power brake booster pushrod.
    17. Fig 7: Power Brake Booster Pushrod Retaining Clip
    GM2716606Courtesy of GENERAL MOTORS COMPANY
  17. Install the power brake booster pushrod retaining clip (1).
  18. Rotate the power brake booster retaining clip 360 degrees to ensure the clip is fully engaged in the brake pedal pivot pin groove.
    19. Fig 8: Power Brake Booster Pushrod Retaining Clip Bolt
    GM2716605Courtesy of GENERAL MOTORS COMPANY
  19. Install the power brake booster pushrod retaining clip bolt (1) and tighten to 10 N.m (89 lb in).
    20. Fig 9: Brake Pedal Position Sensor
    GM2690226Courtesy of GENERAL MOTORS COMPANY
  20. Install the brake pedal position sensor (1).
    21. Fig 10: Brake Pedal Position Sensor Bolt
    GM2690215Courtesy of GENERAL MOTORS COMPANY
  21. Install the brake pedal position sensor bolt (1).
  22. Connect the brake pedal position sensor electrical connector.
  23. Calibrate the brake pedal position sensor. Refer to Brake Pedal Position Sensor Calibration .
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