My truck (04.5 chevy c/c dually 4X4)idles rough and smokes like crazy when stopped in drive sometimes.If I put it in neutral, its not as bad but can still notice it. I have tryed to troubleshoot myself but not much and its not consistant meaning it does it when cold and hot and not all the time.

The truck does have the Edge juice with attitude in it, if this helps.

Any suggestions or comments.

Thanks