2003 Lincoln LS V8 HVAC Problem

[jasonross1984]

So I've got an issue when I have my heat on defrost every thing works great but when I either turn heat off or turn it to a different setting other than defrost my fans run full blast

 

[joegr]

Engine cooling fan (there is only one) or climate control blower (also only one)?

 

[jasonross1984]

Engine cooling fan

 

[joegr]

http://www.lincolnvscadillac.com/forum/showthread.php?91092-GenII-LS8-Cooling-System-Overhaul