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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 528 (Engine Mechanical - 5.3L, 6.0L, 6.2L - Repair Instructions - Off Vehicle) >> Repair Instructions - Off Vehicle >> Oil Pan Cleaning and Inspection (LC9)

Oil Pan Cleaning and Inspection (LC9)

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    Fig 1: View Of Oil Filter Fitting
    GM1658160Courtesy of GENERAL MOTORS COMPANY
  1. Remove the oil filter fitting (438), as required.
    2. Fig 2: Oil Pressure Relief Valve Deflector
    GM2540429Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some models may not be equipped with an oil pressure relief valve deflector (4).

  2. Remove the active fuel management oil pressure relief valve (3).
  3. Remove the oil pressure relief valve deflector (4), if equipped.
  4. Inspect the oil pressure relief valve for proper operation. Lightly depress the valve (2). The valve spring (1) should seat the valve to the proper closed position.
    5. Fig 3: View Of Baffle & Bolts
    GM1658299Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some oil pan baffles may have been attached to the oil pan with rivets. After cleaning the oil pan, if debris is present and cannot be completely removed, oil pan replacement may be necessary.

  5. Remove the bolts (427) and baffle (428).
    6. Fig 4: View Of Oil Pan Cover, Bolts & Gasket
    GM1658297Courtesy of GENERAL MOTORS COMPANY
  6. Remove the oil pan cover (434), bolts (435), and gasket (433).
  7. Clean the oil pan in solvent.
    8. WARNING:

    Refer to Safety Glasses Warning .

  8. Dry the oil pan with compressed air.
    9. Fig 5: Oil Pan
    GM2235168Courtesy of GENERAL MOTORS COMPANY
  9. Inspect the oil pan for the following conditions:
    • Damaged gasket surfaces (1)
    • Restrictions within the oil passages (2) of the pan
    • Damaged oil filter seal surface (3)
    10. Fig 6: View Of Oil Pan Cover, Bolts & Gasket
    GM1658297Courtesy of GENERAL MOTORS COMPANY
  10. Install the oil pan cover (434), gasket (433), and bolts (435).
    11. CAUTION:

    Refer to Fastener Caution .

  11. Tighten the oil pan cover bolts (435) to 9 N.m (80 lb in).
    12. Fig 7: View Of Baffle & Bolts
    GM1658299Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some oil pan baffles may have been attached to the oil pan with rivets. After cleaning the oil pan, if debris is present and cannot be completely removed, oil pan replacement may be necessary.

  12. Install the oil pan baffle (428) and bolts (427).
  13. Tighten the oil pan baffle bolts (427) to 9 N.m (80 lb in).
    14. Fig 8: Oil Pressure Relief Valve Deflector
    GM2540429Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    An oil pressure relief valve deflector (4) must be installed, even if not originally equipped.

  14. Install the oil pressure relief valve deflector (4).
  15. Install the active fuel management oil pressure relief valve (3) and tighten to 27 N.m (20 lb ft).
    16. Fig 9: View Of Oil Filter Fitting
    GM1658160Courtesy of GENERAL MOTORS COMPANY
  16. Install the oil filter fitting (438), as required, and tighten to 55 N.m (40 lb ft).
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