So I gotta question about this now that it came up. My dad's LP failed on his 99 and he thought he had the bypass but it turned out that he had the auxillary. Well he decided to go ahead and replace with another factory from the cummins shop and not wire in the auxillary yet.
He doesn't like the idea of having two pumps inline because he can't tell when one is going to go out so what would it take to get the parts to convert his current auxillary to the bypass kit. I looked at the parts lists and it looks like it is just the adapter at the stock fuel filter anda different wire harness and a little more hose. Is this correct?
I may be trying to get those parts for him so that he can put the better pump on it and still feel fine about it.
Thanks for the help,
I was thinking a fass 150 hffp or a raptor 150 I dont want to go to crazy because I will want to add alot more power if I have ample feul but I dont have the money for tranny upgrades On the other hand I dont want to cook another vp 44 at $1200 and a day of my timeI would highly recomend the FASS system. They are a bit on the expensive side. But worth everypenny!
Im running the FASS 150/150. Its great, Quiet & I have enuff fuel to do just about enything i want to. :thumbsupI was thinking a fass 150 hffp or a raptor 150 I dont want to go to crazy because I will want to add alot more power if I have ample feul but I dont have the money for tranny upgrades On the other hand I dont want to cook another vp 44 at $1200 and a day of my time
so I am going to bring up this dead thread.
The Truck: 1999 24 valve 2500
I finally talked my dad into installing the auxilliary lift pump this week. I put it on and after the first run I couldn't hear the stock lift pump kicking in when the switch was turned on. Is there a pressure switch that is supposed to get this to trigger? When I bumped the motor but didn't start I heard it running but not when I kicked the switch on.
When you turn the key on the edge shows 4-5psi of pressure but when you start it, it drops down to 1-3psi for a second or two until the auxilliary pump kicks in and then it goes right up to 25psi. The factory lift pump is good because we replaced it less than a year ago and we just put the juice with attitude on it and it was running 12-14psi at idle and dropping down to 7 at WOT so it is good, I just wanted that extra insurance because he will be towing a loaded trailer about 2200 miles in a couple weeks and I wanted to make sure he had plenty of fuel pressure.
I just want to know if this is normal or if something is messed up with the install.