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Home >> Cadillac >> 2004 >> CTS Base, 3.2 N >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Engine Mechanical - 5.7L (LS6)) >> Repair Instructions >> On-Vehicle Repair Instructions >> Oil Pan Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
  2. Install the engine support fixture (1-5). Refer to Engine Support Fixture .
    Fig 1: Identifying Engine Support Fixture
    GM1409886Courtesy of GENERAL MOTORS CORP.
  3. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  4. Drain the engine oil. Refer toEngine Oil and Oil Filter Replacement .
  5. Re-install the engine oil drain plug until snug.
    6. Fig 2: View Of Left Closeout Cover & Bolt
    GM178477Courtesy of GENERAL MOTORS CORP.
  6. Remove the left closeout cover and bolt.
    7. Fig 3: View Of Right Transmission Closeout Cover & Bolt
    GM309713Courtesy of GENERAL MOTORS CORP.
  7. Remove the starter motor. Refer to Starter Motor Replacement (LS6) in Engine Electrical.
  8. Remove the right transmission closeout cover and bolt.
  9. Remove and drain the engine oil filter.
  10. Re-install the engine oil filter until snug.
  11. Remove the bottom two transmission housing-to-oil pan bolts.
    12. Fig 4: View Of Engine Oil Temperature Sensor Electrical Connector
    GM651886Courtesy of GENERAL MOTORS CORP.
  12. Disconnect the engine oil temperature sensor (3) electrical connector.
    13. Fig 5: Identifying Frame Mounting Bolts
    GM822362Courtesy of GENERAL MOTORS CORP.
  13. Remove the front frame assembly (1). Refer to Frame Replacement - Front in Frame and Underbody.
  14. Remove the power steering and air conditioning line retainers from the front of the oil pan and position aside.
  15. Reposition the power steering rack in order to gain access to the oil pan bolts and to provide clearance while removing the oil pan.
    16. Fig 6: Locating Engine Oil Level Sensor
    GM178467Courtesy of GENERAL MOTORS CORP.
  16. Remove the oil level sensor from the oil pan. Refer to Engine Oil Level Sensor and/or Switch Replacement .
    17. Fig 7: Locating Oil Pan & Gasket
    GM1199309Courtesy of GENERAL MOTORS CORP.
  17. Remove the oil pan bolts.
  18. Remove the oil pan and gasket. Refer to Oil Pan Removal .
  19. Clean and inspect the oil pan. Refer to Oil Pan Cleaning and Inspection .
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