GM Service Manual Online
For 1990-2009 cars only

    Object Number: 178469  Size: SH
  1. Remove the oil filter.

  2. Object Number: 178471  Size: SH
  3. Remove the oil pan cover, bolts, and gasket, if applicable.
  4. Discard the gasket.

  5. Object Number: 1272831  Size: SH
  6. Remove the oil filter fitting (438) and bypass valve (436), if required.