GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1999 🢒 LeSabre 🢒 Brakes 🢒 Hydraulic Brakes 🢒 Brake Pedal Replacement

Removal Procedure
  1. Disable the SIR system. Refer to Disabling the SIR System in (SIR) System.
  2. Remove the instrument panel assembly. Refer to Knee Bolster Replacement in Instrumental Panel, Gauges and Console.
  3. Disconnect the electrical connectors from the switch.

    4. Object Number: 153123 Size: SH
  4. Remove the two bolts (7 and 6).

    5. Object Number: 153124 Size: SH
  5. Remove the pushrod (3) from the pushrod pin (2).
  6. Remove the barrier.
  7. Remove the four nuts from the booster studs.
  8. Remove the brake pedal assembly (5).

Installation Procedure

    Object Number: 153124 Size: SH
  1. Install the brake pedal assembly (5) onto the booster studs.
  2. Apply lubricant, GM P/N 9985146 or equivalent, to the pushrod pin (2).

    3. Object Number: 153123 Size: SH
  3. Hand start the two bolts (7 and 6) through the brake pedal assembly into the cowl bar and steering column support.
  4. Install the pushrod (3) onto the pushrod pin (8).
  5. Secure the pushrod with a spacer and a retainer.
  6. Install the four nuts onto the booster studs.

    7. Tighten
    Tighten the nuts to 21 N·m(15 lb ft).

    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 barrier (4) onto the brake pedal assembly.
  8. Align with the booster studs.
  9. Tighten the bolt (6) first, and then bolt (7).

    10. Tighten
    Tighten the bolts to 24 N·m(18 lb ft).

  10. Connect the electrical connectors to the switch.
  11. Install the instrument panel assembly. Refer to Knee Bolster Replacement in Instrumental Panel, Gauges and Console.
  12. Enable the SIR system. Refer to Enabling the SIR System in (SIR).