Take it to the dealer..it sounds like my issue ......I had a bad radiator and the car is deemed un safe til thenWell I have the same exact problem as well and the vehicle is only about three weeks old now with roughly 1,400 miles total. I have a 2013 Dart SXT, 1.4 liter engine with the 6 speed manual transmission. I's strange, I can produce the sound only while moving and by either pushing the clutch in and out or moving the manual shifter. When I'm stopped it doesn't do it at all. It is / has definitely getting worse. I'd be curious to know what the dealership did for you in your case. I'll have to bring mine in no doubt. It's starting to annoy the heck out of me.