GM Service Manual Online
For 1990-2009 cars only

    Object Number: 1556785  Size: SH
  1. Remove the oil pan drain plug.
  2. Drain the engine oil.

  3. Object Number: 1556786  Size: SH
  4. Remove the oil filter.

  5. Object Number: 1556787  Size: SH
  6. Remove the coolant drain plug from the left side.

  7. Object Number: 1556790  Size: SH
  8. If equipped with an oil cooler (RPO-KC4), reposition the upper inlet hose clamp (1).
  9. Remove the oil cooler inlet hose from the block outlet.

  10. Object Number: 1556791  Size: SH
  11. If not equipped with an oil cooler (RPO-KC4), remove the coolant drain plug from the right side.
  12. Drain the coolant.