GM Service Manual Online
For 1990-2009 cars only

Oil Pan Replacement LAT

Removal Procedure


    Object Number: 1810250  Size: SH
  1. Remove the drive belt. Refer to Drive Belt Replacement.
  2. Remove the oil level indicator tube. Refer to Oil Level Indicator and Tube Replacement.
  3. Important: The support fixture bar must be installed to provide enough access to remove and properly tighten the oil pan bolts.

  4. Install the engine support fixture. Refer to Engine Support Fixture.
  5. Remove engine mount to bracket bolts (2).
  6. Remove the engine mount to side rail nuts (1).
  7. Remove the engine mount from the engine compartment.
  8. Using the engine support fixture, raise the engine approximately 3 inches.
  9. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.

  10. Object Number: 1811970  Size: SH
  11. Loosen the upper air conditioning (A/C) compressor bolts.
  12. Remove the lower A/C compressor bolt.

  13. Object Number: 758466  Size: SH
  14. Place a suitable drain pan under the oil pan drain plug.
  15. Remove the oil pan drain plug.
  16. Drain the engine oil.
  17. Reinstall the oil pan drain plug until snug.

  18. Object Number: 1811958  Size: SH
  19. Disconnect the engine wiring harness electrical connector (1) from the generator control module coolant pump.

  20. Object Number: 1811960  Size: SH
  21. Remove the generator control module coolant pump bolt.
  22. Remove the generator control module coolant pump from the oil pan.

  23. Object Number: 1578309  Size: SH
  24. Remove the 4 oil pan to transaxle bolts.
  25. Remove the oil pan bolts.

  26. Object Number: 1578310  Size: SH
  27. Remove the oil pan
  28. Remove any old oil pan sealant (1).

Installation Procedure


    Object Number: 1578310  Size: SH
  1. Ensure that the oil pan and the sealing surface on the lower crankcase are free of all oil and debris.
  2. Apply a 2 mm bead of sealant (1) around the perimeter of the oil pan and the oil suction port opening. DO NOT over apply the sealant. More than a 2 mm bead is not required. Refer to Adhesives, Fluids, Lubricants, and Sealers.
  3. Install the oil pan.

  4. Object Number: 1578309  Size: SH
  5. Install the oil pan bolts.
  6. Notice: Refer to Fastener Notice in the Preface section.

  7. Install the 4 oil pan to transaxle bolts.
  8. Tighten
    Tighten the bolts to 75 N·m (55 lb ft).


    Object Number: 466580  Size: SH
  9. Tighten the oil pan bolts in the sequence shown.
  10. Tighten
    Tighten the bolts to 25 N·m (18 lb ft).


    Object Number: 1811960  Size: SH
  11. Install the generator control module coolant pump to the oil pan. Ensure that the anti-rotation tab is inserted into the hole in the oil pan.
  12. Install the generator control module coolant pump bolt.
  13. Tighten
    Tighten the bolt to 25 N·m (18 lb ft).


    Object Number: 1811958  Size: SH
  14. Connect the engine wiring harness electrical connector (1) to the generator control module coolant pump.
  15. Lower the vehicle.

  16. Object Number: 1810250  Size: SH
  17. Using the engine support fixture, lower the engine.
  18. Place the engine mount onto the side rail studs.
  19. Install the engine mount to side rail nuts (1).
  20. Tighten
    Tighten the nuts to 100 N·m (74 lb ft).

  21. Install engine mount to bracket bolts (2).
  22. Tighten the engine mount to bracket bolts in the following sequence.
  23. 15.1. Middle
    15.2. Rear
    15.3. Front

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

  24. Remove the engine support fixture.
  25. Install the oil level indicator tube. Refer to Oil Level Indicator and Tube Replacement.
  26. Install the drive belt. Refer to Drive Belt Replacement.
  27. Fill the engine oil to the proper level.

Oil Pan Replacement LE5

Removal Procedure


    Object Number: 758466  Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Place a drain pan under the oil pan drain plug.
  3. Remove the oil pan drain plug.
  4. Drain the engine oil.
  5. Remove the engine drive belt. Refer to Drive Belt Replacement .
  6. Remove the lower AC compressor bolt.

  7. Object Number: 1578309  Size: SH
  8. Remove the 4 oil pan to transaxle bolts (1).
  9. Remove the oil pan bolts.

  10. Object Number: 1578310  Size: SH
  11. Remove the oil pan
  12. Remove any old oil pan sealant (1).

Installation Procedure


    Object Number: 1578310  Size: SH
  1. Ensure that the oil pan and the sealing surface on the lower crankcase are free of all oil and debris.
  2. Apply a 2 mm bead of sealant (1) around the perimeter of the oil pan and the oil suction port opening. DO NOT over apply the sealant. More than a 2 mm bead is not required. Refer to Adhesives, Fluids, Lubricants, and Sealers for the correct part number.
  3. Install the oil pan.

  4. Object Number: 1578309  Size: SH
  5. Install the oil pan bolts.
  6. Notice: Refer to Fastener Notice in the Preface section.

  7. Install the 4 oil pan to transaxle bolts (1).
  8. Tighten
    Tighten the bolts to 75 N·m (55 lb ft).


    Object Number: 466580  Size: SH
  9. Tighten the oil pan bolts in the sequence shown.
  10. Tighten
    Tighten the bolts to 25 N·m (18 lb ft).

  11. Install the lower AC compressor bolt.
  12. Install the engine drive belt. Refer to Drive Belt Replacement .
  13. Lower the vehicle.
  14. Fill the engine oil to the proper level.

Oil Pan Replacement LAT

Removal Procedure


    Object Number: 1810250  Size: SH
  1. Remove the drive belt. Refer to Drive Belt Replacement.
  2. Remove the oil level indicator tube. Refer to Oil Level Indicator and Tube Replacement.
  3. Note: The support fixture bar must be installed to provide enough access to remove and properly tighten the oil pan bolts.

  4. Install the engine support fixture. Refer to Engine Support Fixture.
  5. Remove engine mount to bracket bolts (2).
  6. Remove the engine mount to side rail nuts (1).
  7. Remove the engine mount from the engine compartment.
  8. Using the engine support fixture, raise the engine approximately 3 inches.
  9. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.

  10. Object Number: 1811970  Size: SH
  11. Loosen the upper air conditioning (A/C) compressor bolts.
  12. Remove the lower A/C compressor bolt.

  13. Object Number: 758466  Size: SH
  14. Place a suitable drain pan under the oil pan drain plug.
  15. Remove the oil pan drain plug.
  16. Drain the engine oil.
  17. Reinstall the oil pan drain plug until snug.

  18. Object Number: 1811958  Size: SH
  19. Disconnect the engine wiring harness electrical connector (1) from the generator control module coolant pump.

  20. Object Number: 1811960  Size: SH
  21. Remove the generator control module coolant pump bolt.
  22. Remove the generator control module coolant pump from the oil pan.

  23. Object Number: 1578309  Size: SH
  24. Remove the 4 oil pan to transaxle bolts.
  25. Remove the oil pan bolts.

  26. Object Number: 1578310  Size: SH
  27. Remove the oil pan
  28. Remove any old oil pan sealant (1).

Installation Procedure


    Object Number: 1578310  Size: SH
  1. Ensure that the oil pan and the sealing surface on the lower crankcase are free of all oil and debris.
  2. Apply a 2 mm bead of sealant (1) around the perimeter of the oil pan and the oil suction port opening. DO NOT over apply the sealant. More than a 2 mm bead is not required. Refer to Adhesives, Fluids, Lubricants, and Sealers.
  3. Install the oil pan.

  4. Object Number: 1578309  Size: SH
  5. Install the oil pan bolts.
  6. Caution: Refer to Fastener Caution in the Preface section.

  7. Install the 4 oil pan to transaxle bolts and tighten to 75 N·m (55 lb ft).

  8. Object Number: 466580  Size: SH
  9. Tighten the oil pan bolts in the sequence shown to 25 N·m (18 lb ft).

  10. Object Number: 1811960  Size: SH
  11. Install the generator control module coolant pump to the oil pan. Ensure that the anti-rotation tab is inserted into the hole in the oil pan.
  12. Install the generator control module coolant pump bolt and tighten to 25 N·m (18 lb ft).

  13. Object Number: 1811958  Size: SH
  14. Connect the engine wiring harness electrical connector (1) to the generator control module coolant pump.
  15. Lower the vehicle.

  16. Object Number: 1810250  Size: SH
  17. Using the engine support fixture, lower the engine.
  18. Place the engine mount onto the side rail studs.
  19. Install the engine mount to side rail nuts (1) and tighten to 100 N·m (74 lb ft).
  20. Install engine mount to bracket bolts (2).
  21. Tighten the engine mount to bracket bolts in the following sequence.
  22. 15.1. Middle
    15.2. Rear
    15.3. Front

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

  23. Remove the engine support fixture.
  24. Install the oil level indicator tube. Refer to Oil Level Indicator and Tube Replacement.
  25. Install the drive belt. Refer to Drive Belt Replacement.
  26. Fill the engine oil to the proper level.

Oil Pan Replacement LE5

Removal Procedure


    Object Number: 758466  Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Place a drain pan under the oil pan drain plug.
  3. Remove the oil pan drain plug.
  4. Drain the engine oil.
  5. Remove the engine drive belt. Refer to Drive Belt Replacement.
  6. Remove the lower AC compressor bolt.

  7. Object Number: 1578309  Size: SH
  8. Remove the 4 oil pan to transaxle bolts (1).
  9. Remove the oil pan bolts.

  10. Object Number: 1578310  Size: SH
  11. Remove the oil pan
  12. Remove any old oil pan sealant (1).

Installation Procedure


    Object Number: 1578310  Size: SH
  1. Ensure that the oil pan and the sealing surface on the lower crankcase are free of all oil and debris.
  2. Apply a 2 mm bead of sealant (1) around the perimeter of the oil pan and the oil suction port opening. DO NOT over apply the sealant. More than a 2 mm bead is not required. Refer to Adhesives, Fluids, Lubricants, and Sealers for the correct part number.
  3. Install the oil pan.

  4. Object Number: 1578309  Size: SH
  5. Install the oil pan bolts.
  6. Caution: Refer to Fastener Caution in the Preface section.

  7. Install the 4 oil pan to transaxle bolts (1) and tighten to 75 N·m (55 lb ft).

  8. Object Number: 466580  Size: SH
  9. Tighten the oil pan bolts in the sequence shown to 25 N·m (18 lb ft).
  10. Install the lower AC compressor bolt.
  11. Install the engine drive belt. Refer to Drive Belt Replacement.
  12. Lower the vehicle.
  13. Fill the engine oil to the proper level.