i've got a 03 6.0 f450 with 225000 on it. it has a hard start, when it starts it stumbles and has a hard time building rpm. and oh yeah a sl of white smoke, which i asume is unburnt diesel fuel. ae says 1500 psi icp, regulater at 14% idle, 70 wot. need to know where to look or if it sounds like anything anyone has heard of. passed the balloon test, so tried another test (turning over with no ignition, looking for bubbles in the fuel bowl). nada:dunno::tard:.