One problem related to manifold/header/muffler/tail pipe has been reported for the 2006 Ford Freestyle. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Ford Freestyle based on all problems reported for the 2006 Freestyle.
Lost power from the engine causing lost speed. Unable to accelerate. Engine sputtered. Since the first episode, I have had continued episodes. Typically worse when the engine warms up. Car completely stopped and was unable to restart the engine on a trip of about 75 miles. Had to have the car towed to a local dealership. We have replaced ignition coil, spark plug, intake manifold gaskets, throttle body assembly without improvement of the condition.