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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 487 (Engine Mechanical - 5.3L, 6.0L, 6.2L - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Oil Pan Replacement (2WD) >> Removal Procedure

Removal Procedure

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    Fig 1: View Of Oil Pan Skid Plate & Bolts
    GM1698082Courtesy of GENERAL MOTORS COMPANY
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. For 1500 series vehicles, remove the oil pan skid plate bolts and skid plate, if equipped.
    3. Fig 2: View Of Oil Pan Skid Plate & Bolts
    GM1698083Courtesy of GENERAL MOTORS COMPANY
  3. For 2500 series vehicles, loosen the 2 rear oil pan skid plate bolts, remove the 2 front oil pan skid plate bolts and skid plate, if equipped.
  4. Unbolt the steering rack and hang downward.
    5. Fig 3: View Of Oil Pan Drain Plug & Seal
    GM1658109Courtesy of GENERAL MOTORS COMPANY
  5. Place a suitable drain pan under the oil pan drain plug.
  6. Remove the oil pan drain plug (430).
  7. Allow the oil pan to drain completely.
  8. Re-install the oil pan drain plug until snug.
    9. Fig 4: View Of Engine Oil Filter
    GM1658113Courtesy of GENERAL MOTORS COMPANY
  9. Place the drain pan under the oil filter.
  10. Remove the oil filter (437).
  11. Allow the oil to drain completely.
  12. Re-install the oil filter until snug.
    13. Fig 5: View Of Right Side Transmission Cover Bolt
    GM1698084Courtesy of GENERAL MOTORS COMPANY
  13. Remove the right side transmission cover bolt.
    14. Fig 6: View Of Left Side Transmission Cover Bolt
    GM1698086Courtesy of GENERAL MOTORS COMPANY
  14. Remove the left side transmission cover bolt and cover.
    15. Fig 7: View Of Vehicle Crossbar, Bolts & Nuts
    GM1698280Courtesy of GENERAL MOTORS COMPANY
  15. For 1500 series vehicles, remove the crossbar bolts/nuts and crossbar.
    16. Fig 8: View Of Vehicle Crossbar, Bolts & Nuts
    GM1698282Courtesy of GENERAL MOTORS COMPANY
  16. For 2500 series vehicles, remove the crossbar bolts/nuts and crossbar.
    17. Fig 9: View Of Lower Transmission Bolts
    GM1698069Courtesy of GENERAL MOTORS COMPANY
  17. For vehicles with a 4L60-E/4L70-E automatic transmission, remove the 2 lower transmission bolts.
    18. Fig 10: View Of Lower Transmission Bolts
    GM1698412Courtesy of GENERAL MOTORS COMPANY
  18. For vehicles with a 4L80-E automatic transmission, remove the 2 lower transmission bolts.
    19. Fig 11: View Of Lower Transmission Bolt
    GM1698070Courtesy of GENERAL MOTORS COMPANY
  19. For vehicles with a 6L80-E automatic transmission, remove the lower left transmission bolt.
    20. Fig 12: View Of Lower Transmission Stud
    GM1698079Courtesy of GENERAL MOTORS COMPANY
  20. For vehicles with a 6L80-E automatic transmission, remove the lower right transmission stud.
    21. Fig 13: Removing The Clutch Housing Bolts/Studs
    GM775394Courtesy of GENERAL MOTORS COMPANY
  21. For vehicles equipped with a manual transmission, remove the lower clutch housing to oil pan bolts.
    22. Fig 14: View Of Engine Wiring Harness Electrical Connector & Components
    GM1698087Courtesy of GENERAL MOTORS COMPANY
  22. Disconnect the engine harness electrical connector (4) from the oil level sensor.
  23. Remove the engine harness clip (3) from the transmission oil cooler line bracket.
    24. Fig 15: View Of Electrical Connector, Cable Channel Bolt & Pin
    GM1697734Courtesy of GENERAL MOTORS COMPANY
  24. Remove the battery cable channel bolt (2).
  25. Slide the channel pin (3) out of the oil pan tab.
    26. Fig 16: View Of Oil Cooler Line Clip
    GM1698073Courtesy of GENERAL MOTORS COMPANY
  26. For vehicles with a 4L60-E/4L70-E automatic transmission, remove the oil cooler lines from the clip (1), if equipped.
    27. Fig 17: View Of Oil Cooler Line Clip
    GM1698076Courtesy of GENERAL MOTORS COMPANY
  27. For vehicles with a 4L80-E automatic transmission, remove the oil cooler lines from the clip (1), if equipped.
    28. Fig 18: View Of Oil Cooler Line Clip
    GM1698081Courtesy of GENERAL MOTORS COMPANY
  28. For vehicles with a 6L80-E automatic transmission, remove the oil cooler lines from the clip (1).
    29. Fig 19: View Of Oil Cooler Line Clip & Bolt
    GM1698074Courtesy of GENERAL MOTORS COMPANY
  29. Remove the transmission oil cooler line clip bolt and clip from the oil pan.
    30. Fig 20: View Of Oil Pan & Bolts
    GM683355Courtesy of GENERAL MOTORS COMPANY
  30. Remove the oil pan bolts.
  31. Remove the oil pan.
    32. Fig 21: Drilling Oil Pan Gasket Retaining Rivets
    GM384699Courtesy of GENERAL MOTORS COMPANY
  32. If reusing the oil pan perform the following steps, otherwise proceed to step 3 of the installation procedure.
    33. NOTE:

    DO NOT allow foreign material to enter the oil passages of the oil pan, cap or cover the openings as required.

  33. Drill out the oil pan gasket rivets (2), if necessary.
  34. Remove the oil pan gasket (1) from the pan.
  35. Discard the oil pan gasket.
  36. Discard the rivets, if necessary.
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