GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 2001 🢒 Aurora 🢒 Engine 🢒 Engine Mechanical - 3.5L 🢒 Oil Pump Assemble

    Object Number: 576590 Size: SH
  1. The dimpled surface must be face-up in the pump body.

    2. Object Number: 256675 Size: SH
  2. Install the inner (5) and the outer rotors (6) in the pump cover in the same orientation as removed. The outer rotor has dimple to indicate the outer surface.
  3. Install the pressure relief valve piston (2) and pressure relief valve spring (3) in the pump housing bore.

    4. 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 pressure relief valve cap (4).

    5. Tighten
    Tighten the pressure relief valve cap (4) to 11 N·m (97 lb in).

  5. Pack the pump housing with white petroleum jelly to ensure pump priming.
  6. Assemble the housing (1) and cover (7).
  7. Install the bolts (8).

    8. Tighten
    Tighten the bolts to 14 N·m (124 lb in).