Doc12

I have a new 2018 with 500 miles on it that I picked up last week, 4/30/18.
I noticed a slight hiccup while driving then things started getting worse.
It was at the Line-X dealer and in side over night Tuesday, when they started it up in the morning it filled the building with smoke and had no power.
Now at a cold start I get smoke, low power and a very loud rattle when accelerating, you might say it sounds like a Ford!
After it warms up (5-10 miles) everything goes away.

This is my third Ram Cummins, I know a diesel will rattle but this is very loud and much more that my 14 ever did.
It has not thrown any codes as of yet. It is at the dealer, they were doing a cold start this morning.

Any suggestions would be helpful.

SOhappy

If it were me I'd be at the dealer getting it fixed. Could be anything since it's such a new truck. That's what warranties are for. But let us know what the problem was, would be interested to know.

Doc12

Thanks for all of your responses.

Dealer found that #5 injector was not tight and threw a code.
Checked the other 5 and they were also not tight to specs but to a lesser degree.
Will check Saturday on a cold start to see if all is well.

Doc12

Saturday start up still had the problem.
Monday contacting STAR again.