I PURCHASED MY 2011 FORD FUSION USED WITH 60K MILES ON IT SOME MONTHS BACK. I NOTICED A FEW TIMES WHEN I'M DRIVING A DISTANCE OF 45 MINUTES OR MORE A WRENCH LIGHT WILL SELDOMLY COME ON AND NOTHING HAPPENS IT JUST STAYS ON. THEN THERE HAS BEEN A FEW TIMES WHERE THE WRENCH LIGHT COMES ON HAVE LOST POWER WHILE DRIVING 65-70MPH AND MY CAR SHAKES AND IT SLAMS BACK INTO GEAR LIKE AS IF I REVED UP MY ENGINE AND DROPPED IT INTO DRIVE. NOTE,THIS ONLY SEEMS TO HAPPEN WHEN I DRIVE ON THE FREEWAY FOR A LONG PERIOD OF TIME. THIS HAPPEND AGAIN TODAY ON 10/5/2014 BUT THIS TIME I WAS ABOUT A HALF MILE AWAY FROM MY EXIT OFF THE FREEWAY AND MY CAR FILLED THE FREEWAY WITH SMOKE COMING FROM UNDERNEATH MY CAR AND I NOTICED FLAMES COMING FROM THE FRONT ENGINE COMPARTMENT. *TR