MY 2007 CHRYSLER PACIFICA 4.0 HAS ALWAYS RAN PRETTY GREAT, RIDES SMOOTH. THIS PARTICULAR DAY IT JERKED AND REVED TO 3000 RPMS WHEN I PUT MY VEHICLE INTO REVERSE, I THEN SWITCHED MY GEAR INTO DRIVE AND THE TRUCK JERKED AGAIN THEN STARTED SMOKING ON THE DRIVERS SIDE OF THE ENGINE. BY THE TIME I COULD PARK THE ENGINE CAUGHT FIRE AND SPREAD QUICKLY. I GRABBED WHAT THINGS I COULD BEFORE THE FIRE DEPARTMENT GOT THERE. THEY HAD TO PRY MY HOOD OPEN BECAUSE IT MELTED THE LATCH TO OPEN IT AND THEY CONTINUOUSLY SOAKED THE WHOLE ENGINE FOR ABOUT 5-7 MINUTES. FIRE SEEMED TO ORIGINATE AROUND THE BATTERY COMPARTMENT AREA.