GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2000 🢒 PJJ 🢒 Brakes 🢒 Drum Brakes 🢒 Wheel Cylinder Overhaul

Disassembly Procedure
  1. Remove the wheel cylinder from the vehicle. Refer to Wheel Cylinder Replacement.

    2. Object Number: 171484 Size: SH
  2. Remove the wheel cylinder boots (4).
  3. Remove the wheel cylinder pistons (3) and seals (2).
  4. Remove the wheel cylinder spring assembly (5).
  5. Remove the wheel cylinder bleeder valve (6).
  6. Inspect the cylinder bore (1) and pistons (3) for the following conditions:
    7. • Scoring
    • Nicks
    • Corrosion
    • Wear
  7. Use a suitable wheel cylinder hone in order to remove light corrosion. Replace the wheel cylinder assembly if the bore does not clean up after a few passes with the wheel cylinder hone.
  8. Clean all the parts in clean, denatured alcohol.
  9. Dry the parts with unlubricated, compressed air.

Assembly 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 to 7 N·m (62 lb in).

  2. Install the spring assembly (5).
  3. Lubricate the new seals (2) with clean brake fluid.
  4. Install the following components:
    5. • Seals (2)
    • Pistons (3)
    • Boots (4)
  5. Install the wheel cylinder to the vehicle. Refer to Wheel Cylinder Replacement.