GM Service Manual Online
For 1990-2009 cars only

    Object Number: 3793  Size: SH
  1. Clean the oil pan mating surface.
  2. Clean the oil pan. Remove all sludge and oil deposits.
  3. Inspect the threads for the engine oil drain plug.
  4. Inspect the oil pan for dents or distortion.
  5. Repair or replace the oil pan if necessary.