LEMON Manuals: Even more car manuals for everyone
Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 207 (Automatic Transaxle - 4T65-E - Introduction (2 Of 2)) >> 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. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Place a drain pan under the transaxle bottom oil pan
  3. Remove the oil pan bolts from the front.
  4. Remove the oil pan bolts from the sides.
  5. Loosen the oil pan rear bolts approximately four turns.
    6. NOTE: Ensure care is taken NOT to damage the mating surfaces of the oil pan and of the case or oil leaks may occur.
  6. Use a rubber mallet to lightly tap the oil pan or use a flat-bladed tool in order to pry the oil pan loose.
  7. Allow the fluid to drain.
  8. Remove the remaining oil pan bolts.
    9. Fig 1: View Of Transaxle Oil Pan And Gasket
    GM164804Courtesy of GENERAL MOTORS CORP.
  9. Remove the oil pan (24).
  10. Remove the oil pan gasket (25).
  11. Inspect the oil pan and the filter screen for the following foreign material:
    • Inspect for metal particles.
    • Inspect for clutch facing material.
    • Inspect for rubber particles.
    • Inspect for engine coolant.
  12. Determine the source of the contamination if foreign material is evident.
  13. Correct the source of the contamination.
    14. Fig 2: Inspecting Oil Pan Flange
    GM164780Courtesy of GENERAL MOTORS CORP.
  14. Inspect the oil pan flange for distortion (1).
  15. Straighten the oil pan flange (1) if distorted.
    16. Fig 3: View Of Oil Pan Bolt
    GM164805Courtesy of GENERAL MOTORS CORP.
  16. Inspect the washers on the bolts when service requires the removal of the bottom oil pan.
    17. Fig 4: Identifying Inverted Oil Pan Washer
    GM164806Courtesy of GENERAL MOTORS CORP.
  17. Install a new bolt and washer assembly if the washer is inverted.
    18. Fig 5: Identifying Oil Pan Gasket
    GM13037Courtesy of GENERAL MOTORS CORP.
  18. Inspect the oil pan (24) for the following conditions:
    • A damaged sealing surface
    • A dented or cracked bottom surface
  19. Inspect the oil pan gasket (25) for the following conditions:
    • A bent or damaged seal core
    • A damaged rubber seal surface
  20. Inspect the oil pan magnet (26) for the following conditions:
    • Damage
    • Misalignment
  21. Clean the oil pan, the gasket and the magnet in order to remove any sediment.
    22. NOTE: Ensure the oil pan and the case flanges are dry and are free of any oil film or leakage may result.
  22. Clean the case sealing surface and the pan sealing surface. Ensure all traces of the old gasket material are removed.
  23. Allow the case sealing surface and the pan sealing surface to dry completely.
scientia non olet · About LEMON Manuals