NHTSA Complaint #10129277 — 2004 DODGE RAM 3500

EXHAUST SMELL FROM FRESH AIR VENTS, MAINLY WHILE IDLING MY 2004 DODGE RAM 3500 4X4 WITH CUMMINS ENGINE. I NOTICED THE SMELL WITHIN DAYS OF PURCHASE, TOOK IT TO SEVERAL DEALERS, AND WAS TOLD THEY HAD NEVER EXPERIENCED THIS PROBLEM BEFORE. END SUGGESTION WAS A CITRUS OIL ADDITIVE TO MAKE THE EXHAUST SMELL LIKE CITRUS. (NO JOKE) FUEL INJECTOR FAILURE, FILLING CRANKCASE WITH DIESEL, CAUSING ROUGH RUNNING AND EVENTUAL OIL PRESSURE LOSS. DEALER, UPON ADVISMENT FROM "TECH DEPARTMENT" CHANGED THE OIL, REPLACED THE FAULTY INJECTOR AND GOT ME OUT THE DOOR. NOW I HAVE EXPERIENCED ENGINE VIBRATIONS THAT ARE GETTING PROGRESSIVLY WORSE, HIGHER ENGINE RPM'S INCREASED FUEL CONSUMTION, A CLOUD OF BLUE SMOKE UPON STARTUP AFTER SEVERAL HOURS OF DOWNTIME, AND THE DEALERSHIP THINKS IT MAY BE A WIRING HARNESS. I SPOKE DIRECTLY TO CUMMINS SERVICE DEPT. AND WAS TOLD THAT WITH OIL PRESSURE LOSS, THEY WOULD HAVE DROPPED THE OIL PAN AND CHECKED THE BEARINGS.