GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2008 🢒 Aveo 🢒 Preface 🢒 Cautions and Notices 🢒 Wheel Cylinder Replacement

Removal Procedure

    Notice: Refer to Vehicle Lifting and Jacking Notice in the Preface section.


    Object Number: 1245719 Size: SH
  1. Raise and suitably support the vehicle.
  2. Remove the rear wheels. Refer to Tire and Wheel Removal and Installation .
  3. Mark the position of the wheels relative to the wheel hubs.
  4. Remove the brake drum.
  5. Remove the shoe and lining. Refer to Brake Shoe Replacement .

    6. Object Number: 1245734 Size: SH
  6. Clean the dirt and foreign material from around the wheel cylinder brake line inlet, the pilot, and the bolt.
  7. Disconnect the brake line from the wheel cylinder.
  8. Plug the opening in the brake line to prevent fluid loss or contamination.

    9. Object Number: 1245735 Size: SH

    Caution: Brake fluid may irritate eyes and skin. In case of contact, take the following actions:

       • Eye contact - rinse thoroughly with water.
       • Skin contact - rinse with soap and water.
       • If ingested - consult a physician immediately.

  9. Remove the wheel cylinder-to-backing plate bolt.
  10. Gently tap out the wheel cylinder from the backing plate, using care not to damage the bleeder valve or its cap.

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1245738 Size: SH
  1. Install the wheel cylinder to the backing plate with the wheel cylinder bolt.

    2. Tighten
    Tighten the wheel cylinder-to-backing plate bolt to 8 N·m (71 lb in).


    Object Number: 1245734 Size: SH
  2. Connect the brake line to the wheel cylinder.

    3. Tighten
    Tighten the brake line to 16 N·m (12 lb ft).

  3. Install the shoe and lining, and the brake drum. Refer to Brake Shoe Replacement .
  4. Bleed the brakes. Refer to Hydraulic Brake System Bleeding .