GM Service Manual Online
For 1990-2009 cars only

    Object Number: 178459  Size: SH
  1. Remove the oil level indicator from the tube.
  2. Remove the oil level indicator tube bolt from the cylinder head.
  3. Remove the oil level indicator tube from the engine block.
  4. Important: Inspect the O-ring seal for cuts or damage. The O-ring seal may be reused if not cut or damaged.

  5. Remove the O-ring seal from the tube (if required).