P0505 Lincoln -

Question

DRIVING AT NORMAL SPEED 45 THRU 65, THE TRANSMISSION SEEMS TO DISCONNECT, THE MOTOR IS IDLING BUT CAR WILL NOT EXCELERATE UNTIL I PULL OVER, COMING TO A DEAD STOP, TAKE TRANS OUT OF DRIVE AND INTO NEUTRAL, AND IMMEDIATELY PUT BACK INTO DRIVE. AFTER DOING THIS I CAN TAKE OFF IN DRIVE AND EVERYTHING IS BACK TO NORMAL, IT'S LIKE I HAVE TO DO THIS TO RE-SET THE TRANSMISSION. IT MAY NOT DO THIS ANYMORE FOR MANY MILES, OR IT MAY DO IT AGAIN WITHIN ONE MILE. NEED HELP. THANKS.