GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1998 🢒 Lumina 🢒 Engine 🢒 Engine Mechanical - 3.1L and 3.4L 🢒 Oil Pan Replacement

Tools Required
    • J 28467-B Universal Engine Support Fixture
    • J 28467-90A Engine Support Adapters
    • J 36462-A Engine Support Adapter Leg Set
    • J 39505 Torque Wrench Adapter

Removal Procedure
  1. Disconnect the battery ground cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  2. Remove the engine mount struts from the engine. Refer to Engine Mount Strut Replacement .
  3. Remove the drive belt. Refer to Drive Belt Replacement .
  4. Remove the A/C compressor mounting bolts and reposition. Refer to Air Conditioning Compressor Replacement in HVAC.
  5. Install J 28467-B , J 28467-90A , andJ 36462-A .
  6. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  7. Disconnect the exhaust manifold pipe from the right rear exhaust manifold. Refer to Catalytic Converter Replacement in Engine Exhaust.
  8. Drain the engine oil. Refer to Engine Oil and Oil Filter Replacement .

    9. Object Number: 54406 Size: SH
  9. Remove the oil level sensor wiring harness connection.
  10. Remove the starter motor. Refer to Starter Motor Replacement in Engine Electrical.
  11. Remove the transaxle brace from the oil pan. Refer to Transmission Brace Replacement in Automatic Transaxle - 4T60-E.
  12. Remove the transaxle mount lower nuts. Refer to Transmission Mount Replacement in Automatic Transaxle - 4T60-E.
  13. Remove the engine mount lower nuts. Refer to Engine Mount Replacement .
  14. Raise the engine using the engine support fixture in order to gain access for oil pan removal.
  15. Remove the engine mount bracket with the engine mount from the oil pan. Refer to Engine Mount Bracket Replacement .
  16. Disconnect the right lower ball joint from the steering knuckle. Refer to Lower Control Arm Ball Joint Replacement in Front Suspension.
  17. Disconnect the right outer tie rod from the steering knuckle. Refer to Rack and Pinion Outer Tie Rod End Replacement in Power Steering System.
  18. Remove the right side frame bolts.
  19. Loosen the left side frame bolts.

    20. Object Number: 105907 Size: MH
  20. Remove the right rear oil pan side bolts. Use J 39505 .

    21. Object Number: 105914 Size: SH
  21. Remove the left front oil pan side bolts.

    22. Object Number: 105918 Size: MH
  22. Remove the oil pan retaining bolts.
  23. Remove the oil pan.
  24. Remove the oil pan gasket.
  25. Clean the oil pan and the engine block gasket surface.

Tools Required
    • J 28467-B Universal Engine Support Fixture
    • J 28467-90A Engine Support Adapters
    • J 36462-A Engine Support Adapter Leg Set
    • J 39505 Torque Wrench Adapter

Installation Procedure

    Object Number: 61840 Size: SH
  1. Apply a small amount of sealer GM P/N 1234579 or equivalent on either side of the rear main bearing cap, where the seal surface on the cap meets the cylinder block (1). Press sealant into the gap with putty knife.
  2. Install the oil pan gasket.

    3. Object Number: 105918 Size: MH
  3. Install the oil pan.

    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 oil pan retaining bolts.

    5. Tighten
    Tighten the oil pan retaining bolts to 25 N·m (18 lb ft).


    Object Number: 105914 Size: SH
  5. Install the left front oil pan side bolts.

    6. Tighten
    Tighten the side bolts to 50 N·m (37 lb ft).


    Object Number: 105907 Size: MH
  6. Install the right rear oil pan side bolts. Use the J 39505 .

    7. Tighten
    Tighten the side bolts to 50 N·m (37 lb ft).

  7. Tighten the left side frame bolts.

    8. Tighten
    Tighten the bolts to 180 N·m (133 lb ft).

  8. Install the right side frame bolts.

    9. Tighten
    Tighten the bolts to 180 N·m (133 lb ft).

  9. Connect the right lower ball joint from the steering knuckle. Refer to Lower Control Arm Ball Joint Replacement in Front Suspension.
  10. Connect the right outer tie rod from the steering knuckle. Refer to Rack and Pinion Outer Tie Rod End Replacement in Power Steering System.
  11. Install the engine mount bracket with the engine mount to oil pan. Refer to Engine Mount Bracket Replacement .
  12. Lower the engine using the engine support fixture.
  13. Install the engine mount lower nuts. Refer to Engine Mount Replacement .
  14. Install the transaxle mount lower nuts. Refer to Transmission Mount Replacement in Automatic Transaxle - 4T60-E.
  15. Install the transaxle brace to the oil pan. Refer to Transmission Brace Replacement in Automatic Transaxle - 4T60-E.
  16. Install the starter motor. Refer to Starter Motor Replacement in Engine Electrical.

    17. Object Number: 54406 Size: SH
  17. Install the oil level sensor wiring harness connection.
  18. Connect the exhaust manifold pipe to the right rear exhaust manifold. Refer to Catalytic Converter Replacement in Engine Exhaust.
  19. Lower the vehicle.
  20. Remove J 28467-B , J 28467-90A , and J 36462-A .
  21. Install the A/C compressor. Refer to Air Conditioning Compressor Replacement in HVAC.
  22. Install the drive belt. Refer to Drive Belt Replacement .
  23. Install the engine mount struts to the engine. Refer to Engine Mount Strut Replacement .
  24. Fill the engine with oil. Refer to Engine Oil and Oil Filter Replacement .
  25. Connect the battery ground cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.