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Home >> Cadillac >> 2006 >> STS Base, 3.6 7, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 21 (Engine Mechanical - 4.4L (2 Of 5)) >> On-Vehicle Repair Instructions (Part 2) >> Oil Pan Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
    Fig 1: View Of Oil Pan
    GM1535942Courtesy of GENERAL MOTORS CORP.
  1. If required, install a new oil pan gasket. It is not necessary to rivet the new oil pan gasket to the oil pan.
  2. Position the oil pan onto the lower crankcase.
    3. Fig 2: View Of Proper Oil Pan Seating
    GM1348913Courtesy of GENERAL MOTORS CORP.
  3. The oil pan must be held flush to 0.50 mm (0.020 in) forward of the rear face of the engine block.
    4. Fig 3: Locating Oil Pan Fasteners
    GM1577253Courtesy of GENERAL MOTORS CORP.
  4. Place oil pan fasteners in location as shown:
    • Short length bolt (420)
    • Medium length bolt (421)
    • Long length bolt (422)
    5. Fig 4: Tightening Oil Pan Bolts
    GM1348914Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice .
  5. Install the oil pan bolts. Tighten the bolts in the sequence shown.

    Tighten: 

    1. First pass-Tighten the bolts to 15 N.m (11 lb ft).
    2. Final pass-Tighten the bolts to 25 N.m (18 lb ft).

    6. Fig 5: Removing & Installing Oil Level Switch
    GM1213854Courtesy of GENERAL MOTORS CORP.
  6. Install the engine oil level sensor into the oil pan.

    Tighten:  Tighten the sensor to 10 N.m (89 lb in).

  7. Connect the electrical connector to the engine oil level sensor.
  8. Install the front frame. Refer to Front Frame Replacement .
  9. Fill the engine oil. Refer to Engine Oil and Oil Filter Replacement .
  10. Remove the engine support fixture. Refer to Engine Support Fixture .
  11. Inspect for oil leaks after engine start up.
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