Please help me. :help: I have a 2006 3500 4x4 6-speed with 156k miles and it will not start, doesnt matter cold or hot, setting for a minute or a day. If you start it on either it will start and run fine. The lift pump is putting fuel up to the Cp3 pump, I cracked the injection lines and they are spitting out fuel while cranking, there are no codes coming up, it does seem like maybe sometimes it possibly runs a little rough, I had a Predator and PowerPuck combo on it, but it doesnt make any diff with it removed. When it first started occuring, it slowly got worse, cranking longer each time untill finially it wont start. I tried replacing the actuator but no luck. I did stick a bolt with an orfice hole in it where the banjo fitting goes for the return line and it would start better than a new truck, but after about a month, it went bad again. Is it possible that the CP3 injection pump went bad internally, is this a gear pump, I think it is, and if so what does the actuator control to control output injection pressure, maybe whatever it controls is bad, and what does the CP3 overflow valve(cascade) do? I checked the rail overpressure valve-ok, no bleed by. IS the injection pump bad, possibly the injectors failing, or possibly a cam or crank sensor, or am I possibly sucking air somewhere? Please let me know of any info you may have, Im trying to sell this truck and buy a new one. And if anyone has an idea, how much is it worth, It has the Laramie package and it is a dually 4x4. Thanks!