GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Astro - 4WD 🢒 Steering 🢒 Power Steering System 🢒 Power Steering Pump Pulley Replacement

Tools Required

    • J 25034-C Power Steering Pump Pulley Remover
    • J 25033-C Power Steering Pump Pulley Installer

Removal Procedure
  1. Remove the lower fan shroud. Refer to Engine Coolant Fan Lower Shroud Replacement in Engine Cooling.
  2. Remove the drive belt. Refer to Drive Belt Replacement in Engine Mechanical 4.3L.

    3. Object Number: 649303 Size: SH
  3. Remove the power steering pump pulley using the J 25034-C .

Installation Procedure

    Object Number: 643361 Size: SH
  1. Place the power steering pump pulley on the end of the power steering pump shaft.
  2. Install the power steering pump pulley using J 25033-C .

    3. Object Number: 245012 Size: SH
  3. Ensure that the power steering pump pulley (1) is flush against the power steering pump shaft (2), with an allowable variance of 0.25 mm (0.010 in).
  4. Install the drive belt. Refer to Drive Belt Replacement in Engine Mechanical 4.3L.
  5. Install the lower fan shroud. Refer to Engine Coolant Fan Lower Shroud Replacement in Engine Cooling.