This is my first time on this site, I have a 01 Duramax, Im running a Edge/Attitude,AFE stage 2. When stoping at stop light the truck runs ruff and puffs blue smoke,but while driving seems fine. changed fuel filter and gas station, didnt make any differencs. It does not do it all the time.
Does any body Know anything about this?
Does any body Know anything about this?