Hard to turn steering wheel when braking?

I'm having a problem with some steering too and I haven't really had time to play with it mine seems to stick in the straight ahead position It literally clunks when you go to make a steering adjustment that is off of center like something is literally sticking. What I would do here first is jack up the front of the car and see is there really something going on resistance wise if the car is jacked up if you sit in it and turn it on and turn the steering wheel has all the hard to turn business gone away magically? My sticking is not there when the car's jacked up I haven't tried it with tires on the ground under a half droop condition but I have it lifted up yesterday and the sticking doesn't seem to be there with the car on and the power steering engaged so I'm thinking it's in that power steering assembly which is electric that's right above my knees when I'm driving the car I haven't had time to pull it out and have a look at it yet it has a big electric motor attached to the top of it doesn't look like it's going to be a lot of fun The linkage through that assisting device and on down to the rack all looks good everything spins properly and seems okay your assist is coming from that big electric motor and whatever's in that thin asynchrous gear set or such .