NHTSA Complaint #10896304 — 2015 FORD F-250 SD

DURING REGEN CYCLE FOR DIESEL MOTOR, VEHICLE BEGINS TO MAKING A KNOCKING NOISE AND THEN BEGINS TO SHAKE, AND FINALLY GIVE FEELING OF LOSING POWER. BECAUSE OF THIS, FEARFUL THE VEHICLE COULD ENCOUNTER THIS SITUATION AT TIMES WHERE IT COULD POSE GREAT DANGER. THIS OCCURS AT VARIOUS SPEEDS AND DRIVING CONDITIONS. ISSUE WAS PREVIOUSLY "ADDRESSED" IN A BULLETIN FROM MANUFACTURER; HOWEVER, THERE IS MORE TO THIS CONDITION. WHAT VEHICLES DON'T IDLE OR DRIVE AT HIGHWAY SPEEDS FOR A PERIOD OF TIME OR DON'T MAKE SHORT TRIPS? MOST RECENT OCCURRENCE HAPPENED ON 8/15/16, BUT HAS BEEN OCCURRING FOR THE TWO MONTHS-- IS GETTING PROGRESSIVELY WORSE IN LEI RATION AND FORCE. HAVE TAKEN TO A DEALERSHIP AND THEY SAID THEY COULD FIND NOTHING WRONG-- THEY DIDN'T EVEN ACT LIKE THEY KNEW ANYTHING ABOUT THE ISSUE OCCURRING AND THEY DEFINITELY DID NOT MENTION THE PRECIOUS MANUFACTURE BULLETIN TSB 15-0088. HAVE BEGUN TO RESEARCH THIS ISSUE AND IT APPEARS AN UPDATE WAS TO OCCUR IN MARCH 2016, BUT HAVE NOT BEEN NOTIFIED OF ANY ISSUES? NEEDS TO BE LOOKED AT CLOSELY TO ENSURE IT IS NOT A DESIGN FLAW OR WORSE.