Thanks for the help with my last post, i was the newbie with the intake manifold problems. Anyways, i have been trying to fix every little thing that has gone wrong with my volvo, but as i fix things one thing bothers me most of all. The blower motor is busted, it makes a lot of noise when i turn on the heater or air conditioner. I was just wondering if this could cause my windows to fog up when it rains or when it is really cold? The back window defrosts ok, but the windshield won't defrost for anything. Any ideas? Thanks for reading this thread.