2014 PETERBILT 388 Fuelpropulsion System Problems

PROBLEMS WITH (AFTER TREATMENT)CODES FLASHING, CHECK ENGINE, IMMEDIATELY WENT TO STOP ENGINE IMMEDIATELY AND TRUCK SHUT OFF AT 70MPH. FORTUNATELY NOT ON INCLINE OR DECLINE AND WAS ABLE TO PULL TO SAFETY. THIS HAPPENED ON TWO SEPARATE OCCASIONS. PETERBILT NOR CUMMINS HAS NOT BEEN ABLE TO DIAGNOSE THE PROBLEM UNTIL THE FUEL PUMP COMPLETELY FAILED AND TOOK OUT THE ENGINE. MANUFACTURER KNOWS THIS IS A DESIGN AND ENGINEERING FLAW AND REFUSES TO TAKE RESPONSIBILITY FOR THESE OLDER TRUCKS THAT STILL HAVE LOW MILES BUT ARE OUT OF WARRANTY. WE ARE PERSONALLY AWARE OF 5 ENGINE FAILURES IN THE SAME TIME FRAME OF OURS..ALL CUMMINS ISX15 MOTORS. THESE ENGINES ARE LEMONS. THE AFTER TREATMENT ENGINEERING IS A SHAM AND THE MOTORS ARE NOT EQUIPPED TO HANDLE THE STRAIN. THESE ARE PUTTING OWNER OPERATORS OUT OF BUSINESS AND ARE AN ENORMOUS SAFETY HAZARD. WHAT IS THE NHTSA PREPARED TO DO ABOUT THIS...