I have attached a picture of the EGR that I believe you are dealing with. If it is different, let me know. As far as tools, it bolts on so you just need standard sockets to remove it. As far as the hoses, you have one of two attachments. First, it could be a standard barbed fitting that has a simple clamp that removes it. Or, you may have a quick connect that simply requires pushing down and uncliping the retainer. No special tools are needed.
Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
Images (Click to enlarge)
Wednesday, January 5th, 2011 AT 2:34 PM