GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2006 🢒 Lucerne 🢒 Engine 🢒 Engine Mechanical - 4.6L 🢒 Oil Filter Adapter Replacement

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

    3. Object Number: 597382 Size: SH

    Important: Engine oil cooler quick connect fittings must be replaced whenever they are removed from the engine oil filter adapter.

  3. If equipped, remove the engine oil cooler quick connect fittings from the engine oil filter adapter, with the oil pipes still attached.

    4. If not equipped with an engine oil cooler, go to step 7.

  4. Remove the dust cover from the quick connect joint.

    5. Object Number: 289543 Size: SH
  5. Remove the internal spring clips from the engine oil cooler fittings.

    6. Object Number: 289546 Size: SH
  6. Remove the engine oil cooler pipes from the cooler fittings.

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

    8. Object Number: 62328 Size: SH
  8. Remove the oil filter.

    9. Object Number: 62336 Size: SH
  9. Remove the 2 adapter mounting bolts.
  10. Remove the adapter and discard the O-rings.
  11. Remove the engine oil pressure switch from the oil filter adapter.
  12. Clean and inspect the oil filter adapter. Refer to Oil Filter Adapter Cleaning and Inspection for the 4.6L, Unit Repair.

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.

  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: 62336 Size: SH
  2. Install the new O-rings. Petrolatum may be used to retain the O-rings in the adapter.
  3. Install the 2 bolts attaching the oil filter adapter to the engine block.

    4. Tighten
    Tighten the oil filter adapter bolts to 25 N·m (18 lb ft).


    Object Number: 62328 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. Object Number: 518550 Size: SH

    Important: Engine oil cooler quick connect fittings must be replaced whenever they are removed from the engine oil filter adapter.

  7. If equipped, install the engine oil cooler quick connect fittings to the engine oil filter adapter.

    8. If not equipped with an engine oil cooler, proceed to step 1.

    Tighten
    Tighten the engine oil cooler quick connect fittings to 18 N·m (13 lb ft).


    Object Number: 518551 Size: SH
  8. Push the engine oil cooler pipes fully into the oil cooler quick connect fittings, until a "click" is heard.
  9. Tug gently on the cooler pipes to ensure proper retention.
  10. Slide the dust cover over the quick connect joint.
  11. Install the air deflector. Refer to Front Air Deflector Replacement .
  12. Lower the vehicle.
  13. Adjust the engine oil level to the full mark.
  14. Inspect for oil leaks after engine start up.