ONGOING PROBLEM WITH ENGINE STALLING WHILE TRAVELING VEHICLE BEEN IN/OUT OF DEALER SHOP ON THREE OCCASIONS, AND PROBLEM CANNOT BE DUPLICATED OR CORRECTED. THIS PROBLEM HAS CAUSED AN ACCIDENT. *AK FUEL PUMP WAS REPLACED AND DEALER STATED AN EXHAUST LEAK CAUSING CARBON BUILD UP IN O2 SENSORS WERE CAUSING STALLING, HOWEVER AFTER REPAIRS VEHICLE STILL STALLS. CONSUMER CAN SMELL A GAS ODOR OUTSIDE VEHICLE. TRANSMISSION LEAKS, DEALER FOUND PAN HAD A HOLE, DEALER REPLACED PAN AND GASKET. *SLC