Ramdam59
Junior Member
So i have a 99 5.9 and i replaced my valve cover gaskets, since then it has not ran right. i have an exhaust leak where the exhaust pipe meets the manifold not sure if that could be contributing or not but i have changed the pcv valve and checked high and low for vacuum leaks, though i have not found any it does sound like there is one. will start and idle fine and after it gets warmed up it will want to stall out and die, should i take the carb off and clean it? running out of ideas and just want to drive my truck so any advice will help. thanks
