Thanks for the response sir… questions though… when you say “pump factory”, not sure what you mean by that… (when I change out the fuel filter, I am pretty sure I turn a valve to drain the filter housing before I change the filter... not sure if that is what you mean... ) Also, the cat fuel/water separator… I have heard of a Caterpillar separator… is that what you are talking about on the frame? Thanks in advance!!
You're dodge has a factory fuel pump that the duramax does not have. The duramax relys solely on the cp3 injection pump to "suck" fuel from the tank to the pump then feed the injectors. This can be a problem if you run big tunes that require more fuel which the cp3 can not suck enough fuel to keep up so it drains the fuel rails and then IIRC puts the engine in limp mode (limits truck to 2000 rpms) and you'll have to clear the code with your programmer or scanner to get back out of it. It also takes the work off the cp3 since the lift pump pushes fuel to it so it wont have to suck as hard to get the fuel which is good considering this is a 900 dollar cp3
2004 FORD F-250, 6.0, CC/SB, FX4, LARIAT. 33 BFG A/T, B&W, RANCHHAND BUMPER
SOLD2002 LB7 CC/SB 4X4, 6" RCX LIFT, 37" TERRA GRAPPLERS, 18" KMC HOSS, K&N CAI, EDGE EVOLUTION CS, STRAIGHT PIPE, NICKTANE, RANCHHAND BUMPER WITH 30" RIGID LIGHT BAR, AND OTHER DOO DADS