GM Service Manual Online
For 1990-2009 cars only

Power Steering Pump Pulley Replacement LY7

Tools Required

    • J 25034-C Power Steering Pump Pulley Remover
    • J 25034-257 Power Steering Pump Pulley Remover Adapter

Removal Procedure

  1. Remove the power steering pump from the engine for clearance. Refer to Power Steering Pump Replacement .

  2. Object Number: 649303  Size: SH
  3. Use the J 25034-C and J 25034-257 in order to remove the pump pulley.

Installation Procedure


    Object Number: 643361  Size: SH
  1. Use Mac® Tools Power Steering Pump Pulley Service Kit or equivalent, to install the power steering pump pulley.

  2. Object Number: 254752  Size: SH

    Important: 

       • Ensure that the face of the pulley hub is flush to within 0.25 mm (0.010 in) with the end of the pump shaft.
       • Do not use the arbor press to install the pulley.

  3. Install the power steering pump to the engine. Refer to Power Steering Pump Replacement .

Power Steering Pump Pulley Replacement LX9

Tools Required

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

Removal Procedure

  1. Remove the washer solvent container. Refer to Windshield Washer Solvent Container Replacement .
  2. Remove the drive belt from the power steering pump pulley. Refer to Drive Belt Replacement for the 3.5L engine.

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

Installation Procedure


    Object Number: 643361  Size: SH
  1. Install the power steering pump pulley to the pump using the J 25033-C . Ensure that the face of the pulley hub is flush with the pump drive shaft.
  2. Install the drive belt to the power steering pump pulley. Refer to Drive Belt Replacement for the 3.5L engine.
  3. Install the washer solvent container. Refer to Windshield Washer Solvent Container Replacement .