Does anyone know how to find and change this? I have the tools just don't know the steps, or the location Please e-mail @ the_male_perception@yahoo.com

Here is a link for some info:
http://www.autozone.com/az/cds/en_us/0900823d/80/10/c9/71/0900823d8010c971/repairInfoPages.htm

WHy do you want to remove , is it because of leaking or noe heat???
Flushing of core could possibly help.

You may want to check with your local Library they may have a Haynes Repair Manual that you can check out or purchase at a parts store for about $20.00.

Hope this helps