Originally Posted by bluebird90
You might also check the U joint at the steering column, they can cause a binding effect if they are stuck.
Yep, I had this happen in our Subaru. The steering wheel would turn smoothly, then it would reach a stiff spot, then it would turn smoothly again. It turned out to be a u-joint in the steering column that was dry and rusting up.
I couldn't find a replacement so I cleaned it the best I could and injected some grease back into it. It's been working fine since, though the steering is a bit looser than I'd like.