No their's no coolant leaking. When you put the switch on 1-4 you hear nothing. So do you think it's the switch? Like I was saying if you're just sitting still w/ car running you feel nothing, unless you're at 60 or higher you feel some heat. It's really hard keeping your windows clear especially the other days from the snow. What's a good place to go have checked out & fixed. Dealer will break your pockets.Thanks