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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 237 (Engine Mechanical - 3.9L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Oil Pan Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the engine support fixture. Refer to Engine Support Fixture .
  2. Remove the right front wheel and tire. Refer to Tire and Wheel Removal and Installation .
  3. Remove the right front splash shield. Refer to Splash Shield Replacement - Engine .
    4. Fig 1: View Of Oil Drain Plug
    GM1556785Courtesy of GENERAL MOTORS CORP.
  4. Remove the oil pan drain plug.
  5. Drain the crankcase.
  6. Reinstall the oil pan drain plug until snug.
    7. Fig 2: Identifying Right Lower Control Arm
    GM1677210Courtesy of GENERAL MOTORS CORP.
  7. Remove the engine harness clips from the right lower control arm.
  8. Remove and discard the lower ball joint castle nut cotter pin (1).
  9. Remove the lower ball joint castle nut (1).
    10. Fig 3: Separating Ball Stud From Steering Knuckle
    GM378908Courtesy of GENERAL MOTORS CORP.
  10. Install the over J 41820 the ball stud and lower control arm as shown.
  11. Rotate the ball stud nut counterclockwise in order to separate the ball stud from the steering knuckle.
    12. Fig 4: Identifying A/C Compressor Front Bolt & Nut
    GM1675217Courtesy of GENERAL MOTORS CORP.
  12. Remove the air conditioning (A/C) compressor front bolt and nut.
    13. Fig 5: Identifying A/C Compressor Rear Bolt
    GM1675218Courtesy of GENERAL MOTORS CORP.
  13. Remove the A/C compressor rear bolt and position the compressor aside.
  14. Remove the transaxle brace to engine block/oil pan bolts.
  15. Remove the transaxle brace to transaxle bolts.
    16. Fig 6: Identifying Transaxle Brace
    GM1677238Courtesy of GENERAL MOTORS CORP.
  16. Remove the transaxle brace.
  17. Remove the transaxle brace to oil pan bolts.
  18. Remove the transaxle brace to transaxle bolt.
  19. Remove the transaxle brace
  20. Remove the starter. Refer to STARTER MOTOR REPLACEMENT .
    21. Fig 7: Identifying Engine Harness & Clips
    GM1677214Courtesy of GENERAL MOTORS CORP.
  21. Disconnect the engine harness electrical connector from the oil level sensor.
  22. Remove the engine harness clip from the oil pan.
  23. Remove the engine mount. Refer to Engine Mount Replacement (FWD)  or Engine Mount Replacement (AWD) .
  24. Place adjustable jack stands under the frame.
    25. Fig 8: Identifying Left Side Frame Bolts
    GM1677195Courtesy of GENERAL MOTORS CORP.
  25. Loosen the left side frame bolts (2) and remove the right side frame bolts (1).
  26. Using the jack stands, lower the right side of the frame enough to remove the oil pan.
    27. Fig 9: Identifying Oil Pan Bolts
    GM1583199Courtesy of GENERAL MOTORS CORP.
  27. Remove the oil pan side bolts (1). .
  28. Remove the oil pan bolts (2).
  29. Remove the oil pan.
  30. Remove the oil pan gasket
  31. Clean the following items:
    • The oil pan flanges
    • The oil pan rail
    • The front cover
    • The threaded holes
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