Steering problem
 

My 2009 F150 Lariat CC LWB just have a power steering malfunction while on the road. It is at the dealer at this moment to find out what went wrong. Before it happened, during a turn, I heard a couple of popping noise at the front end. After that, I almost run into a car coming from the other direction. I completely lost right steer. I have to fight the steering wheel everytime I turn right or negotiate a right steer even on highway speed. I fought this steering problem foir over 200 miles in winding CO HWY 160. Has anyone have encountered the same problem?