IN DEC OF 2012, MY ALTERNATOR BELT BROKE, SO I HAD MY BUICK TOWED TO A MECHANIC I HAVE BEEN USING FOR THIS VEHICLE. I WAS DRIVING MY CAR AFTERWARDS ABOUT 2 WEEKS AND THE LOW WINDSHIELD FLUID LIGHT CAME ON,...SO I LIFTED THE HOOD AND I FIND MY OIL CAP SMOLDERING AND MY SPARK PLUG WIRES CHARRED.....EVEN THOUGH I TOOK THIS TO THE DEALERSHIP FOR THE RECALL...THE RECALL DIDN'T ADDRESS A MECHANIC CHANGING THE WIRE ROUTING OF THE CAR. THE ISSUE IS OIL LEAKING TO THE HEAT SHIELD AND CATCHING ON FIRE....NOT WHERE THE SPARK PLUGS WERE SITUATED. I REPLACED THE VALVE GASKET AND PLUGS/WIRES. *TR