Noticed a weird pop feeling in my steering wheel today. It happens right around when the wheel is centered and turning slowly. I can feel it though the steering wheel pretty well. Only does is at low speed or stopped. I can shake the wheel back and forth fast and I don't feel it. I did the outer tie rods and ball joints last week and the inner tie rods were fine and it was aligned yesterday. Like I said didn't notice it till today though. It feels like tension builds up before it pops, all of this has been while the engine is running have not tried it with no power assist yet. Car has 194k on it so, but nothing was found wrong when I had it aligned yesterday. Any thoughts?