I have a 96 F350 this is leaking fuel from the drivers side exhaust manifold. It runs real rough. I noticed the exhaust manifold does not warm up unless I hold the throttle wide open for several minutes. The truck has new injectors in on that side of the motor as well as glow plugs. Has anyone else had this problem or an idea of which way to go from here, I don't want to keep throwing money at this truck.