As title states 2014 eco boost shudders and loses power,dealer has done fuel pressure switch?,spark plugs with boots ,and vacuum hoses nothing lasts long. I have warranty thru ford( premium care ) .this dealer is the sole technicians since new,the inconvenience of getting towed in every time has gotten old and tedious. They have had 3 or 4 wacks at fixing problem,anyone got any info on this issue,dealer seems to dance around with parts and causes. So anyone been down this path? What solved this problem?