So here's one for you!
I have a '96 Cherokee and for some reason my selector switch that decides if the heat goes to the floor, dash, etc. has stopped working. I can move it to any position and it's stuck on defrost. If I climb under the dash I can manually move the motors but if I let go they snap back into position defrost. I know they are vacuum operated but I don't know where to look either for a broken or fallen off line. Anybody have a good idea? Please don't say tear apart the dash *prays*!!! Thanks for any help.