I drove my car in the rain the other night and the defrosters could not keep the windshield clear. The fan was blowing all kinds of hot air but before I got a block from my house the windows were so fogged up I had to pull over. FYI my car sat for 15 years and still has alot of scum on the windows, it also has A/C but no belt on the compressor. Any help would be appreciated.