GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Astro - 4WD 🢒 Steering 🢒 Power Steering System 🢒 Power Steering Pump Flow Control Valve Replacement - Off Vehicle

Disassembly Procedure

    Object Number: 580317 Size: SH
  1. Drain the oil from the reservoir (1).
  2. Remove the connector and fitting assembly (2).
  3. Remove the control valve assembly (4) from the pump housing (1). Make sure the flow control spring (5) does not fall out of the pump housing (1).
  4. Remove and discard the O-ring seal (3) from the connector and fitting assembly (2).

Assembly Procedure

    Object Number: 580317 Size: SH
  1. Install the flow control spring (5), if removed from the pump housing (1).
  2. Lubricate the new O-ring seal (3) with power steering fluid.
  3. Install the O-ring seal (3) onto the connector and fitting assembly (2).
  4. Install the control valve assembly (4).

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

  5. Install the connector and fitting assembly (2).

    6. Tighten
    Tighten the connector and fitting assembly to 75 N·m (55 lb ft).