GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1998 🢒 Metro 🢒 Steering 🢒 Power Steering System 🢒 Power Steering Pump Replacement

Removal Procedure

    Object Number: 430360 Size: MH

    Notice: Do not start the vehicle with any power steering gear inlet or outlet hoses disconnected. When disconnected, plug or cap all openings of components. Failure to do so could result in contamination or loss of power steering fluid and damage to the system.

  1. Remove the 1 bolt retaining the high pressure hose (13) to the core support.
  2. Separate the high pressure hose (13) from the high pressure pipe at the core support.
  3. Loosen the hose clamp and the return hose (12) from the reservoir (15).
  4. Remove the power steering pressure switch electrical connector.
  5. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  6. Remove the power steering pump drive belt. Refer to Drive Belt Replacement in Engine Mechanical.

    7. Object Number: 355281 Size: MH
  7. Remove the 3 bolts (3) and the air conditioning (A/C) compressor (2) from the mounting bracket (4).

    8. Hang the A/C compressor off to the side (if equipped).

  8. Remove the 4 bolts (1) retaining the power steering pump A/C mounting bracket to the engine.

    9. Object Number: 430360 Size: MH
  9. Remove the power steering hose (12) and the bracket, with the pump (10) attached, from the engine compartment.
  10. Remove the 3 bolts and the power steering pump from the mounting bracket.
  11. Remove the following components from the power steering pump:
    12. • The 1 nut
    • The lock washer
    • The high pressure line (13)
  12. Remove the 1 hose clamp and the return hose (12) from the pump.

Installation Procedure

    Object Number: 430360 Size: MH
  1. Secure the return hose (12) to the pump with the 1 hose clamp.

    2. 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.

  2. Secure the high pressure line (13) to the pump with the 1 lock washer and the 1 nut.

    3. Tighten
    Tighten the high pressure line nut to 25 N·m (18 lb ft).

  3. Secure the power steering pump to the mounting bracket with the 3 bolts.

    4. Tighten
    Tighten the power steering pump to bracket bolts to 35 N·m (25 lb ft).


    Object Number: 355281 Size: MH
  4. Install the power steering pump and the A/C compressor mounting bracket (4) to the engine.

    5. Secure the compressor with the 4 bolts (1).

    Tighten
    Tighten the power steering pump and the A/C compressor mounting bracket to engine bolts to 46.8-50.4 N·m (63.7-68.6 lb ft).

  5. Install the A/C compressor (2) to the mounting bracket (4).

    6. Secure the bracket with the 3 bolts (3).

    Tighten
    Tighten the A/C compressor mounting bolts to 22.5-27.4 N·m (16.5-20.1 lb ft).


    Object Number: 430360 Size: MH
  6. Install the power steering pump drive belt. Refer to Drive Belt Replacement in Engine Mechanical.
  7. Lower the vehicle.
  8. Unplug the power steering hoses/pipes.
  9. Connect the power steering pump pressure switch electrical connector to the pump.
  10. Connect the return hose (12) to the steering reservoir (15).
  11. Secure the high pressure hose (13) to the core support with the 1 bolt.

    12. Do not tighten the bolt completely.

  12. Install the high pressure hose (13) to the high pressure pipe (2) from the steering gear.

    13. Tighten

        • Tighten the high pressure hose retaining bracket bolt to 10 N·m (89 lb in).
        • Tighten the high pressure hose to the high pressure pipe flare nut to 40 N·m (30 lb ft).
  13. Fill the power steering fluid reservoir (15) with new power steering fluid. Refer to Checking and Adding Power Steering Fluid .
  14. Bleed the power steering system. Refer to Power Steering System Bleeding .