Join Date: Jan 2009
Thanked 64 Times in 60 Posts
Well, your lift pump is kicking on, but that doesn't mean its supplying adequate pressure. If you get as low as 5psi, you start doing damage to your injection pump. Diesels are pretty simple, fuel, air and compression. If you have air, which I'm sure you do, cause the valves would have to be staying shut not to, then that leaves you with fuel and compression. Unless compression was dead on all your cylinders it should at least try to fire. Its probably time for a new injection pump. Since its still under warranty, I'd just take what dodge gives you. They will probably replace your lift pump too, and relocate it to an intank pump, Personally I'm not too fond of these, but what are you gonna do. I wouldn't mess with it, until its out of warranty.
I would install a fuel pressure gauge, or a low fuel pressure light though. that way, if your fuel pressure drops again in the future, you can fix the problem before you take out another VP.
2000 2500 reg. cab 4x4 auto 577hp
09 6.7L QC LB stick, 4x4.
TOTAL PERFORMANCE DIESEL 707-545-FUEL (3835)