GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2000 🢒 Grand Am 🢒 Brakes 🢒 Hydraulic Brakes 🢒 Wheel Cylinder Overhaul

Disassembly Procedure

    Object Number: 171484 Size: SH
  1. Remove the wheel cylinder. Refer to Wheel Cylinder Replacement .
  2. Remove the boots (4).
  3. Remove the following components:
    4. • The pistons (3)
    • The seals (2)
  4. Remove the spring (5).
  5. Remove the bleeder valve (6).
  6. Inspect the cylinder bore (1) and the pistons (3) for the following conditions:
    7. • Scoring
    • Gouges
    • Corrosion
    • Wear
  7. Use a suitable wheel cylinder hone to clean up any light corrosion.
  8. Replace the wheel cylinder (1) if the cylinder bore does not clean up with with a couple of passes with the wheel cylinder hone.
  9. Clean all of the components in denatured alcohol.
  10. Dry all of the components with nonlubricated, compressed air.
  11. Lubricate the new seals with clean brake fluid.

Assemble Procedure

    Object Number: 171484 Size: SH

    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.

  1. Install the bleeder valve (6).

    2. Tighten
    Tighten the bleeder valve (6) to 7 N·m (62 lb in).

  2. Install the spring (5).
  3. Install the following components:
    4. • The seal (2)
    • The pistons (3)
    • The boots (4)
  4. Install the wheel cylinder. Refer to Wheel Cylinder Replacement .