DAIMLER TRUCKS (DTNA) IS RECALLING CERTAIN DETROIT DIESEL EPA07 AND EPA10 DD13 ENGINES MANUFACTURED FROM APRIL 22, 2009, THROUGH FEBRUARY 1, 2012. THESE ENGINES WERE INSTALLED AS ORIGINAL EQUIPMENT ON VARIOUS HEAVY DUTY TRUCKS AND EMERGENCY VEHICLES. THE PUMP TO RAIL HIGH PRESSURE FUEL LINE SUPPORT SYSTEM USED ON THESE ENGINES IS SENSITIVE TO ASSEMBLY TORQUE AND MAY BE DAMAGED DURING SERVICE WORK. AS A RESULT OF OTHER REPAIRS, THE LINE SUPPORTS MAY LOOSEN, POTENTIALLY LEADING TO FUEL LINE CRACKING AND A FUEL LEAK.