So on my 01 Ram 2500 it smokes slightly when started cold. Just enough that you can see the blue out of the tailpipe and you can smell unburned fuel a bit. It goes away after a couple minutes. What is most likely causing this? It starts great and isn't missing or anything.

 

Just a cold high mileage motor. Mine does it in the winter time and some times in the spring and fall. It's just a cold motor

 

Don't worry mine does too

 

mine too

 

have you scanned for codes?

 

everyones does it when its cold.. perfectly normal

 

i have heard that when a 12v does that, you change the fuel filter and it goes away. i am not sure if this is right but it might help.

 

I couldn't see a 12v not smoking a little on a cold start. I've worked on a few and they all smoked a little idling cold. Not on a 60 degree ambient temp start but you get the point. Its normal. Just cold engine with unburnt fuel.