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Home >> Buick >> 2004 >> Century Base >> Repair and Diagnosis >> Engine Mechanical >> Engine Mechanical - 3.1L >> Repair Instructions >> On-Vehicle Repair Instructions >> Engine Oil Level Sensor and/or Switch Replacement >> Removal Procedure
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Removal Procedure

    Fig 1: View Of Engine Oil Drain Plug
    GM190542Courtesy of GENERAL MOTORS CORP.
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the engine oil drain plug and drain the engine oil.
    3. Fig 2: Oil Level Sensor Electrical Connector
    GM54406Courtesy of GENERAL MOTORS CORP.
  3. Disconnect the engine oil level sensor electrical connector.
  4. Remove the bolt from the engine oil level sensor.
  5. Remove the engine oil level sensor from the oil pan.
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