My 6.7 is missing when idle any idea? Injector maybe?

 

is your truck still stock with the dpf and egr.

 

No it got deleted.

 

if no codes maybe a injector. does it start hard.

 

kind of. when its idle it shakes then slight second stops then does the shake. its a consistent thing.

 

Check injectors I think one might not be firing all the time. You can take the valve cover off and disconnect one injector at a time to see which one is missing or put it on a scanner once you know which one it is just put a new one in and it should take care of it. It is about 400 for a new one.