I have a 96 Ford Ranger with the 2.3 and I am pretty sure my heater core is on its way out. I can smell Anit Freeze when my A/C is on and there is no visual leak under the hood and I can't smell any anti freeze from just under the hood. So I have looked into fixing it myself and it seems to be a total PAIN! Involves pulling the sterring wheel, removing the whole dash blah blah blah, and I have checked out how much 2 local shops would charge to fix and its around $800. I don;'t really have that now and I don't really want to spend that much on the vehicle anyway. So can I just plug and bypass it? I live in Florida so the heater is not so important. I only had to add about 2 cups of fluid to my radiator so im not losing much now. How much damage am I doing as long as there is fluid in it and its not overheating while I drive it until it gets fixed? Thanks to all replies.