Shifts great but jerks and shakes at 40 plus

OTHERS MAY JUMP IN AND ANSWER TOO

I'M NOT SO HOT WITH NEWER COMPUTER VEHICLES LIKE YOURS

BUT I DO KNOW ABOUT MAINTENANCE

HAVE YOU KEPT UP WITH SCHEDULED MAINTENANCE?

IF NOT, SOMETIMES IT'S NOT TOO LATE TO CATCH UP!....WITH ALL OF IT!

THE 1ST THING THAT COMES TO MIND IS A REALLY DIRTY FUEL FILTER (KEEPING UP, MIGHT HAVE FIXED THIS POSSIBILITY BEFORE IT EVER OCCURRED)....DEMAND MAY BE LOW AT LOW SPEEDS, AT HIGHER SPEEDS, DEMAND IS GREATER, ENOUGH FUEL MAY NOT GET PAST "DIRTY" RESTRICTIONS IN THE FILTER

THIS MAY AID YOU ALSO

https://www.2carpros.com/questions/2007-ford-taurus-tune-up

THE WAY THIS SITE "PROMPTS" YOU AND THE "SUPPOSE-ED" UNLIMITED SPACE TO TYPE IN YOUR INFO---IS A BIT DECEIVING--AS YOU CAN SEE, WE ARE LEFT IN SUSPENSE AS TO WHAT YOU WERE TRYING TO CONVEY

IF YOU WOULD, ANYTHING THAT GOT CUT OFF IN YOUR INTRODUCTION OR IF THERE IS ANYTHING YOU WANT TO ADDWE LIKE DETAIL!---IT REALLY MIGHT AID WITH YOUR FIX

CATCH UP!---TEST AND SEND YOUR FUEL PRESSURE NUMBERS BACK TOO

YOUR TURN

THE MEDIC