GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 2000 🢒 Alero 🢒 Preface 🢒 Cautions and Notices 🢒 Oil Pan Replacement

Removal Procedure
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  2. Install the engine support fixture. Refer to Engine Support Fixture .
  3. Remove the engine mount. Refer to Engine Mount Replacement .
  4. Raise the engine approximately 3.8 cm (1.5 in).
  5. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  6. Drain the engine oil.
  7. Drain and recover the coolant. Refer to Cooling System Draining and Filling in Engine Cooling.
  8. Remove the flywheel dust shield.
  9. Remove the right front wheel and tire assembly.
  10. Remove the right splash shield. Refer to Wheelhouse Splash Shield Replacement in Body Front End.
  11. Remove the drive belt. Refer to Drive Belt Replacement .
  12. Remove the A/C compressor lower bolts. Refer to Air Conditioning Compressor Replacement in HVAC Systems - Manual.

    13. Object Number: 63037 Size: SH
  13. Remove the brace (3) which supports the transmission to the engine.
  14. Remove the radiator outlet pipe.
  15. Remove the bolt and the nut which secure the oil pan to the flywheel cover.
  16. Remove the flywheel cover stud for clearance.

    17. Object Number: 33652 Size: SH
  17. Remove the oil pan bolts.
  18. Remove the oil pan and gasket.

    19. Clean the engine block and oil pan surfaces. Refer to Oil Pan Cleaning and Inspection .

Installation Procedure

    Object Number: 33652 Size: SH
  1. Install the oil pan and gasket.

    2. Object Number: 60805 Size: SH

    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. Tighten the oil pan bolts as shown in the illustration.

    3. Tighten

        • Tighten the M8 X 1.25 X 80 bolt (1) to 24 N·m (18 lb ft).
        • Tighten the M8 X 1.25 X 22 bolt (2) to 24 N·m (18 lb ft).
        • Tighten the M6 X 1.00 X 25 bolt (3) to 12 N·m (106 lb in).
        • Tighten the oil pan to housing bolt (4) to 26 N·m (19 lb ft).
  3. Install the nut which secures the oil pan to the transmission.
  4. Install the radiator outlet pipe. .
  5. Install the radiator outlet pipes to the oil pan.
  6. Install the radiator outlet pipe bolts.
  7. Install the brace which supports the transmission to the engine.

    8. Tighten
    Tighten the engine to transmission brace bolts to 50 N·m (37 lb ft) in sequence.

  8. Install the A/C compressor bolts. Refer to Air Conditioning Compressor Replacement in HVAC Systems - Manual.
  9. Install the drive belt. Refer to Drive Belt Replacement .
  10. Install the right splash shield. Refer to Wheelhouse Splash Shield Replacement in Body Front End.
  11. Install the right front wheel and tire assembly.
  12. Install the flywheel housing dust shield.
  13. Fill the cooling system. Refer to Cooling System Draining and Filling in Engine Cooling.
  14. Fill the crankcase with oil to the appropriate level. Use recommended oil. Refer to Engine Oil and Oil Filter Replacement .
  15. Lower the vehicle.
  16. Lower the engine approximately 3.8 cm (1.5 in).
  17. Install the engine mount. Refer to Engine Mount Replacement .
  18. Remove the engine support fixture. Refer to Engine Support Fixture .
  19. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.