well today got in the van started it up and heard a clicking noise moved the hot and cold lever clicks on cold side thumps on hot side don't know whats wrong any help from anybody would help alot thanks:banghead:

Its the heater door actuator.

Go here for details.

http://www.automotivehelper.com/topic308775.htm

http://community.webshots.com/album/556939487VdTPOV
Let me know if you need help and sound like the blend door motor 56.00 part at the dealer only.
Look on page 2 as well there is one, the first shot on page 1..