TDG Mafia Member #21
Join Date: Jan 2006
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My money is on the pump circling the drain. A lot of times the boxes just magnify the problem so when you take them off it seems that the pump is fine. They are still going bad but it is less noticible because the box isn't giving the aggressive fueling and the problem is more subtle.That being said, there have been lots of people that have driven with VP's that were failing and have gotten quite a few more miles out of them. I think you usually get a p0216 code as well when the pump is on it's last leg but not always. I would go ahead and replace the pump if it was my truck.
2007 F350 CC 4x4, EGR delete, stock for now
Old truck :"01" Dodge 3500 DRW. Goerend Bros w/ triple disk, Edge Drag Comp, Jammer Stage 5's, Turnbuckle, Dakota Digital and ISSPRO Gauges, BHAF,4" FLO-PRO exhaust, Vulcan kit, Holley Blue Pump, TC Lockup Switch, Snow stage 2, a few more little bits in the works
377hp and 823tq @ Smokin' (with stage 3's/no drag upgrade)
"400" club wannabe