GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Aveo 🢒 Brakes 🢒 Hydraulic Brakes 🢒 Brake Proportion Valve Replacement

Removal Procedure

    Object Number: 1245637 Size: SH
  1. Disconnect the brake lines from the proportioning valves.
  2. Remove the valves from the master cylinder body.

Installation Procedure

    Warning: Refer to Brake Fluid Warning in the Preface section.

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1245637 Size: SH

    Note: Since these valves are adjusted in pairs to the correct control range, they must be replaced in pairs.

  1. Install the proportioning valves to the cylinder body.

    2. Tighten
    Tighten the proportioning valves to 40 N·m (30 lb ft).

  2. Connect the brake lines to the valves.

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

  3. Bleed the braking system. Refer to Hydraulic Brake System Bleeding.