GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Impala 🢒 Steering 🢒 Power Steering 🢒 Power Steering Pump Flow Control Valve Replacement - Off Vehicle

Power Steering Pump Flow Control Valve Replacement - Off Vehicle CB Series

Disassembly Procedure


    Object Number: 391490 Size: SH
  1. Remove the O-ring union fitting (5) from the hydraulic pump housing assembly (1).
  2. Remove the O-ring seal (4) from the O-ring union fitting (5).
  3. Remove the control valve assembly (3).
  4. Remove the flow control spring (2).

Assembly Procedure

    Object Number: 391490 Size: SH
  1. Install the flow control spring (2) to the hydraulic pump housing assembly (1).
  2. Install the control valve assembly (3).
  3. Lubricate the O-ring seal (4) with power steering fluid.
  4. Install the O-ring seal (4) onto the O-ring union fitting (5).

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

  5. Install the O-ring union fitting (5) into the hydraulic pump housing assembly (1) and tighten to 75 N·m (55 lb ft).