GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Block the wheels.

  2. Object Number: 227908  Size: MH
  3. Remove the bolts (5) from the brake pedal bracket (3).
  4. Tilt the cab. Refer to Cab Tilting in General Information.
  5. Remove the left wheelhouse panel. Refer to Wheelhouse Panel Replacement - Upper and to Wheelhouse Panel Replacement - Lower in Body Front End.
  6. Loosen the lock nut (9) on the brake pedal joint.
  7. Turn the dual application valve push rod until the rod is free if the brake pedal joint nut (10).
  8. Lower the cab. Refer to Cab Tilting in General Information.

  9. Object Number: 227911  Size: SH
  10. Remove the brake pedal.

Installation Procedure


    Object Number: 227911  Size: SH
  1. Loosely fit the brake pedal into position.
  2. Tilt the cab. Refer to Cab Tilting in General Information.

  3. Object Number: 227908  Size: MH
  4. Loosely assemble the dual application valve push rod into the brake pedal joint nut (10).
  5. Lower the cab. Refer to Cab Tilting in General Information.
  6. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  7. Install the bolts (5) to the brake pedal bracket (3).
  8. Tighten

        • Tighten the 6-mm bolts to 8 N·m (71 lb in).
        • Tighten the 8-mm bolts to 19 N·m (14 lb ft).
  9. Tilt the cab. Refer to Cab Tilting in General Information.
  10. Pull up the top of the brake pedal until the pedal is in contact with the stopper on the return side, while turning the brake pedal joint.
  11. Adjust the park pedal to an end play of 5.25-5 mm (0.206-0.182 in).

    Tighten
    Tighten the lock nut (9) on the brake pedal joint to 62 N·m (46 lb ft).

  12. Verify that the end play is 5.25-5 mm (0.206-0.182 in).
  13. Install the left wheelhouse panel. Refer to Wheelhouse Panel Replacement - Upper and to Wheelhouse Panel Replacement - Lower in Body Front End.
  14. Lower the cab.
  15. Perform the air leak test. Refer to Air Brake System Leak Test .