Any help with this would be great. I recently bought a 1972 Cadillac Coupe DeVille and my climate control system is not working right. It blows air out only in the defrost mode but the air only comes out the front floor vent. I live in Lake Tahoe, NV. and cant drive with fogged up windows. What can I look for to find out whats going on?

Derek Miller, January 2010