take nuts off, penetrant of your choice, swing them back and forth some. floor jack with 2x4 underneath it closest to the mirror and it will submit. best to spray them on a hot day and do it multiple times
A lot of patients are needed the most. I had the same problem when I took my doors off. Like everyone said you need to remove the bolts on the bottom of each hinge. I would spray the pins with wd-40 for a few days prior to removing them; that is if the paint is coated on there. Swing the doors back and forth while lifting up. Get someone strong to help with the doors. If they are full doors they are pretty heavy.
Is there only nuts on the bottom?? (mine do not have any)
Yes, they came new with only nuts on the bottom of the hinge pins. In your case it sounds as if the previous owner may have removed the nuts and didn't put them back on. Many (including me) do not put the nuts back on. If no nuts there, then just do what everybody's saying, lube, swing, lift, repeat. I haven't tried the jacking thing, if you jack, make sure the lifting point is as forward (close to the hinges) as you can. Watch that you don't bend the door when you jack. Many swear by this jacking method.
take a block of wood and a floor jack and open the door, place the flookjack under the door withe the block on it bout mid way ( not to the end cuz it will put it in a pinch) jack up the jack to where it touches the door, and slowly bump the jack up more, should pop lose
I had the same problem! This is goin to sound stupid you will need wd-40 (it wont hurt the paint) 2x4 cut to length and a floor jack. Take the nuts off, Spray the bolts down, swing the doors back and fourth cut the 2x4 to where it will fit between the jack and the bottom bolt on the door. start jacking it up slowly and have just a lil amount of preassure on it swing the door just a lil bit if it has not popped out yet. I know its a redneck way of doing it but it worked for me. If you would like you can put a rag over the top of the 2x4 so you dont scratch your paint.