07 Chrysler Aspen hesitates bad on acceleration
 

My wife has an 07 Chrysler Aspen 4.7 Flex Fuel. Tonight she tells me the car hesitated (Bucked) several times to the point where she couldn't drive it above 5 mph without it doing this. She advised me it only happened on acceleration several times and the truck felt like it literally had no power. So like in typical fashion I drive 40 minutes to where she is stuck and wola it drives fine for me. The truck did send a code which was the Cam positioning sensor. Has anyone had any similar problems like this and if so what was it? Is it an easy fix? Any help to this newbie on this forum would be greatly appreciated. Thanks in advance.