GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1998 🢒 Chevy P12 Chassis 🢒 Engine 🢒 Engine Mechanical - 7.4L 🢒 Power Steering Pump Replacement

Removal Procedure
  1. Remove the power steering pump brace; and remove the pulley. Refer to Power Steering Pump Pulley Replacement .

    2. Object Number: 247449 Size: SH
  2. Remove the supply return and the reservoir hoses at the pump.
    3. 2.1. Raise the hoses up to prevent the drainage of the fluid.
    2.2. Cap or tape the ends of the hoses and pump the openings to prevent the entrance of dirt.
    2.3. Tag the hose locations.
  3. Remove the rear nut and washer.
  4. Remove the rear bracket bolts and the bracket.

    5. Object Number: 247450 Size: SH

    Notice: Do not Hammer the pump off the engine. Damage to the pump housing may result.

  5. Remove the power steering pump front mounting bolts and pump from the bracket.
  6. Remove the flow control valve, if replacement is required, from the steering test procedure. Refer to Power Steering System Test Procedure and Power Steering Fluid Reservoir Replacement - Off Vehicle .

Installation Procedure

    Object Number: 247450 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.

  1. Install the new control valve, if required. Refer to Power Steering Fluid Reservoir Replacement - Off Vehicle .
  2. Install the power steering pump to the bracket.

    3. Tighten
    Tighten the power steering pump front mounting bolts to 40 N·m  (30 lb ft).

  3. Install the power steering pump rear bracket and bolts.

    4. Tighten
    Tighten the bolts to the engine to 40 N·m (30 lb ft).


    Object Number: 247449 Size: SH
  4. Install the power steering pump bracket rear mounting nut.

    5. Tighten
    Tighten the nut to 40 N·m (30 lb ft).

  5. Install the supply return and reservoir hoses to the pump.
  6. Install the power steering pulley; and replace the pump brace. Refer to Power Steering Pump Pulley Replacement .
  7. Fill and bleed the power steering system. Refer to Power Steering System Bleeding .