I've got an '04 with 286K on it. It stopped while stuck in traffic last week and I posted here about it. I got it started by clamping off the 2 fuel return lines at the banjo and once started it ran OK. The problem started when in FL and I had just gotten fuel at a small station. Thinking the fuel filter may have been clogged, I changed it with a new WIX filter and that seemed to solve my problem. It started right up for the next few days and then all of a sudden I stopped at a rest stop and it wouldn't start. A few tries and it started. Started fine for a few more days and then wouldn't start again after stopping. Clamp the lines and it started. It seems the problem only occurs when stopping after a long time of driving. If I let it sit overnight, it always starts in the morning. I don't have a code reader. I suspect that the fuel pressure solenoid is not sealing fully when starting but before I replace the fuel rail I would like to be sure this is the problem. Diesel in Florida all seems to be bio-diesel with up to 20% mix. Is it possible that the new fuel filter is clogged again and giving low fuel? I have plenty of fuel pressure to the high pressure pump.