GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2008 🢒 DTS 🢒 Engine 🢒 Engine Mechanical - 4.6L 🢒 Power Steering Pump Replacement

Removal Procedure

    Object Number: 284266 Size: SH
  1. Remove the drive belt. Refer to Drive Belt Replacement.
  2. Install a drain pan under the vehicle.
  3. Disconnect the power steering return hose from the power steering reservoir.

    4. Object Number: 284268 Size: SH
  4. Remove the power steering pressure hose from the power steering pump.

    5. Object Number: 284267 Size: SH
  5. Remove the power steering pump mounting bolt.

    6. Object Number: 105222 Size: SH
  6. Remove the power steering pump from the vehicle.
  7. Remove the power steering pulley. Refer to Power Steering Pump Pulley Replacement.
  8. Remove the power steering reservoir. Refer to Power Steering Fluid Reservoir Replacement - Off Vehicle.

Installation Procedure
  1. Install the power steering reservoir. Refer to Power Steering Fluid Reservoir Replacement - Off Vehicle.
  2. Install the power steering pulley. Refer to Power Steering Pump Pulley Replacement.

    3. Object Number: 105222 Size: SH
  3. Install the power steering pump to the vehicle.

    4. Object Number: 284267 Size: SH

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  4. Install the power steering pump mounting bolt.

    5. Tighten
    Tighten the power steering pump mounting bolt to 50 N·m (37 lb ft).


    Object Number: 284268 Size: SH
  5. Install the power steering pressure hose to the power steering pump.

    6. Tighten
    Tighten the power steering pressure hose to 30 N·m (22 lb ft).


    Object Number: 284266 Size: SH
  6. Install the power steering return hose to the power steering reservoir.
  7. Remove the drain pan from under vehicle.
  8. Install the drive belt. Refer to Drive Belt Replacement.
  9. Bleed the power steering system. Refer to Power Steering System Bleeding.