One problem related to delivery fuel pump has been reported for the 2011 Ford Flex. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Ford Flex based on all problems reported for the 2011 Flex.
Fuel pump failure shut down engine in seconds on the freeway and left us stranded on the freeway with highspeed traffic. Problem confirmed by the dealer. Vehicle inspected by the manufacturer. No warning, engine just lost power on the freeway.