One problem related to ignition coils failure has been reported for the 2011 Ford F-150. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Ford F-150 based on all problems reported for the 2011 F-150.
While traveling a long duration at a consistent mph, low rpm, and low turbo boost pressure I began to climb a hill where more acceleration was needed to maintain mph. At time the vehicle rapidly slowed, engine light cam on, tried to add throttle to stay out of the way of approaching traffic but just continued to slow. This happened while traveling from las vegas nevada to reno nevada. I replaced the ignition coils and that solved the problem only to have it happen again in less than 5k miles in the same driving conditions.