GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Express 🢒 Brakes 🢒 Hydraulic Brakes 🢒 Combination Valve Replacement

Removal Procedure

    Object Number: 1199229 Size: SH
  1. Raise the vehicle and properly support it with safety stands. Refer to Lifting and Jacking the Vehicle.
  2. Disconnect the electrical connector from the combination valve.
  3. Disconnect the front and rear brake pipes from the combination valve.
  4. Remove the bolt holding the combination valve to the frame.
  5. Remove the combination valve.

Installation Procedure

    Object Number: 1199229 Size: SH
  1. Install the combination valve to the frame.

    2. Caution: Refer to Fastener Caution in the Preface section.

  2. Install the bolt to the combination valve and the frame and tighten to  10 N·m (89 lb in).
  3. Connect the front and rear brake pipes to the combination valve and tighten to  30 N·m (22 lb ft).
  4. Connect the electrical connector to the combination valve.
  5. Bleed the hydraulic brake system. Refer to Hydraulic Brake System Bleeding.