I have a 2011 F 150 with electric power steering issues. I have come across others who are having the same problem. The issue is what feels like a loose joint in the steering shaft. Some people refer to it as popping. It feels like a loose ball joint would feel. I have had it to a local Ford dealer and they essentially "blew me off." They can find nothing when they put it on a lift and do a visual. It is something that would require more than that. It does not occur when you are making turns. It is when you are driving straight, especially when you hit small bumps in a row. I am concerned about the safety of it. The truck has 10,000 miles. It seems to occur more with higher temperatures. I have filed a report with NHTSA.gov and they have responded back that they are looking into it. The only way anything will come of it is that other people have filed a report with the same problem.