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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 62 (Engine Mechanical) >> Repair Instructions >> On-Vehicle Repair Instructions >> Oil Pan Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
  • The alignment of the structural oil pan is critical. The rear bolt hole locations of the oil pan provide mounting points for the transmission bellhousing. To ensure the rigidity of the powertrain and correct transmission alignment, it is important that the rear of the block and the rear of the oil pan must NEVER protrude beyond the engine block and transmission bellhousing plane.
  • Do not reuse the oil pan gasket.
  • It is not necessary to rivet the NEW gasket to the oil pan.
    Fig 1: View Of Sealant Applied To Front Oil Pan-To-Engine Block Junction
    GM451897Courtesy of GENERAL MOTORS CORP.
  1. Apply a 5 mm (0.20 in) bead of sealant 20 mm (0.80 in) long to the engine block. Refer to Sealers, Adhesives, and Lubricants  for the correct part number.

    Apply the sealant directly onto the tabs of the front cover gasket that protrudes into the oil pan surface.

    2. Fig 2: View Of Sealant Applied To Rear Oil Pan-To-Engine Block Junction
    GM451898Courtesy of GENERAL MOTORS CORP.
  2. Apply a 5 mm (0.20 in) bead of sealant 20 mm (0.8 in) long to the engine block. Refer to Sealers, Adhesives, and Lubricants  for the correct part number.

    Apply the sealant directly onto the tabs of the rear cover gasket that protrudes into the oil pan surface.

    3. Fig 3: View Of Oil Pan & Bolts
    GM683355Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Be sure to align the oil gallery passages in the oil pan and engine block properly with the oil pan gasket.
  3. Pre-assemble the oil pan gasket to the pan.
    • Install the gasket onto the pan.
    • Install the oil pan bolts to the pan and through the gasket.
  4. Install the oil pan, gasket and bolts to the engine block.
  5. Tighten the oil pan bolts until snug. Do not overtighten.
    6. Fig 4: Identifying Stud & Bolt Securing Transmission To Engine (Right Side)
    GM394448Courtesy of GENERAL MOTORS CORP.
  6. Install the transmission bolt and stud on the right side until snug.
    7. Fig 5: Identifying Six Studs & One Bolt Securing Transmission To Engine
    GM394446Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice .
  7. Install the bottom bolt on the left side until snug.

    Tighten: 

    1. Tighten the oil pan and oil pan-to-oil pan front cover bolts to 25 N.m (18 lb ft).
    2. Tighten the oil pan-to-rear cover bolts to 12 N.m (106 lb in).
    3. Tighten the bellhousing, converter cover, and transmission bolts/stud to 50 N.m (37 lb ft).

    8. Fig 6: View Of Positive Battery Cable Clip & Bolt
    GM310672Courtesy of GENERAL MOTORS CORP.
  8. Install the positive battery cable clip and bolt to the oil pan.

    Tighten:  Tighten the positive battery cable clip bolt to 9 N.m (80 lb in).

  9. Install the engine oil cooler lines to the positive battery cable clip.
    10. Fig 7: View Of Positive Battery Cable Fasteners (4.8L, 5.3L & 6.0L)
    GM662510Courtesy of GENERAL MOTORS CORP.
  10. Install the following to the positive battery cable clip:
    • Engine wiring harness clip
    • Positive battery cable clip
    11. Fig 8: View Of Positive Battery Cable, Channel & Bolt
    GM662508Courtesy of GENERAL MOTORS CORP.
  11. Slide the channel pin in to the oil pan tab.
  12. Install the battery cable channel bolt.

    Tighten:  Tighten the battery cable channel bolt to 12 N.m (106 lb in).

    13. Fig 9: View Of RH Side Engine Electrical Connectors
    GM662991Courtesy of GENERAL MOTORS CORP.
  13. Connect the oil level sensor electrical connector (6).
    14. Fig 10: View Of Left Closeout Cover & Bolt
    GM178477Courtesy of GENERAL MOTORS CORP.
  14. Install the transmission cover and bolt.

    Tighten:  Tighten the transmission cover bolt to 12 N.m (106 lb in).

    15. Fig 11: View Of Crossbar Bolts & Bar (2WD)
    GM328107Courtesy of GENERAL MOTORS CORP.
  15. Install the crossbar.
  16. Install the crossbar bolts.

    Tighten:  Tighten the crossbar bolts to 100 N.m (74 lb ft).

  17. Install the starter motor. Refer to Starter Motor Replacement .
  18. Install the front differential. Refer to Differential Carrier Assembly Replacement .
  19. Install new engine oil and a new oil filter. Refer to Engine Oil and Oil Filter Replacement .
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