NHTSA Complaint #11354474 — 2018 NEWMAR DUTCH STAR

DEF SYSTEM FOR DIESEL ENGINE STARTED TO FAIL CAUSING REDUCTION IN PERFORMANCE OF MOTOR HOME. IF I HAD NOT BEEN ABLE TO GET DIRECTLY TO A FREIGHTLINER SERVICE CENTER, I WOULD HAVE ENDED UP ON THE INTERSTATE ABLE TO GO ONLY FIVE MILES PER HOUR AND NEEDING TO BE TOWED. THIS IS AN ON GOING KNOWN PROBLEM WITH THESE ENGINES MANUFACTURED BY CUMMINS. THIS PARTICULAR PART IS FAILING ON A REGULAR BASIS ACROSS MANY CHASSIS MAKERS CAUSING A POTENTIAL DANGER TO THE OWNERS OF THESE COACHES. THE PARTICULAR PART IS CALLED A DEF HEAD THAT REGULATES AND METERS THE POLLUTION REDUCING DEF FLUID. THIS PART NEEDS TO BE IMPROVED AND IF IT DOES FAIL, A BETTER SOLUTION NEEDS TO BE IMPLEMENTED THAT DOES NOT DERATE THE ENGINE PERFORMANCE TO THE POINT OF BEING DISABLED LEAVING PEOPLE STRANDED.