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Oil Pan Cleaning and Inspection

WARNING: This page is about a different car, the 2004 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Oil Pan & Oil Level Sensor
    GM35861Courtesy of GENERAL MOTORS CORP.
  1. Clean the oil pan sealing surface.
  2. Clean the oil pan. Remove all the sludge oil deposits, and sealer.
  3. Inspect the threads for the oil level sensor and the engine oil drain plug.
  4. Inspect the oil pan for dents, cracks, or distortion.
  5. Repair or replace the oil pan as necessary.