GM Service Manual Online
For 1990-2009 cars only

    Object Number: 309750  Size: SH
  1. Remove the oil level indicator from the tube.
  2. Remove the oil level indicator tube bolt.
  3. Remove the oil level indicator tube from the engine block.
  4. Important: Inspect the O-ring for cuts or damage. The O-ring may be used again if it is not cut or damaged.

  5. Remove the O-ring from the tube, as required.