GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 2003 🢒 Aurora 🢒 Engine 🢒 Engine Mechanical - 4.0L 🢒 Oil Filter Adapter Replacement

Removal Procedure
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the air deflector. Refer to Front Air Deflector Replacement in Body Front End.

    3. Object Number: 481563 Size: SH
  3. Disconnect the electrical connector (2) from the engine oil pressure switch (1).

    4. Object Number: 591872 Size: SH
  4. Remove the oil filter.

    5. Object Number: 591904 Size: SH
  5. Remove the 2 adapter mounting bolts.
  6. Remove the adapter and discard the O-rings.
  7. Remove the engine oil pressure switch from the oil filter adapter.
  8. Clean and inspect the oil filter adapter. Refer to Oil Filter Adapter Cleaning and Inspection .

Installation Procedure

    Notice: Replacement components must be the correct part number for the application. Components requiring the use of the thread locking compound, lubricants, corrosion inhibitors, or sealants are identified in the service procedure. Some replacement components may come with these coatings already applied. Do not use these coatings on components unless specified. These coatings can affect the final torque, which may affect the operation of the component. Use the correct torque specification when installing components in order to avoid damage.

  1. Install the engine oil pressure switch to the oil filter adapter.

    2. Tighten
    Tighten the engine oil pressure switch to 16 N·m (12 lb ft).


    Object Number: 591904 Size: SH
  2. Install the new O-rings. Petrolatum may be used to retain the O-rings in the adapter.

    3. 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.

  3. Install the 2 bolts attaching the oil filter adapter to the engine block.

    4. Tighten
    Tighten the oil filter adapter bolts to 16 N·m (12 lb ft).


    Object Number: 591872 Size: SH
  4. Lightly oil the replacement oil filter gasket with clean oil.

    5. Important: Fill the oil filter with the engine oil.

  5. Install the oil filter.

    6. Tighten
    Tighten the oil filter to 32 N·m (24 lb ft).


    Object Number: 481563 Size: SH
  6. Connect the electrical connector (2) to the engine oil pressure switch (1).
  7. Install the air deflector. Refer to Front Air Deflector Replacement in Body Front End.
  8. Lower the vehicle.
  9. Adjust the engine oil level to the full mark.
  10. Inspect for oil leaks after engine start up.