phal

That is the info I was looking for, I will buy from DTR store if I need the part.

D2 Cat

Gary,
The schrader valve you see should screw out just like one on an innertube. I'm thinking it's 1/8" iron pipe thread. That's the same as the extensions you get at the auto parts store for your grease gun. You can get a 12" extension and then go to your test gauge.

If it's a different thread take a hose off a hand air pump and thread that fitting in. Pressure will be about 15 lb max. so pressure isn't a big safety issue.

For a permanent solution you can get a "T" fitting to replace the banjo fitting as shown in your picture on the right side and use SS wrapped hose to go into your cab for a gauge.

phal

I plumbed into the left fitting and had ZERO pressure. Is this the wrong port or am I just getting zero pressure from the lift pump? I checked again, the pump buzzes when giving the truck power, so there is a connection to the electrical.

thanks...gary

D2 Cat

Shop manual says the fitting on the left is an overflow valve.

phal

[QUOTE=D2 Cat;2522982]Gary,
The schrader valve you see should screw out just like one on an innertube. I'm thinking it's 1/8" iron pipe thread. That's the same as the extensions you get at the auto parts store for your grease gun. You can get a 12" extension and then go to your test gauge.

QUOTE]

Well, since I didn't see the above before I posted the last one, you will figure out that I checked the pressure on the wrong port. I checked on the big one to the left. This is the fuel return for the VP, correct? I used a tapered pipe thread on this and it felt correct, I was careful when I tightened it down, so I hope I didn't screw anything up.



Since I got zero pressure on the side I thought I was supposed to check, I got gutsy and just disconnected the one on the right. This fitting is connected to the bottom of the filter housing. I turned on the truck and got nothing out of the line, not a drop.

So, does this mean I have a bad lift pump?

thanks....gary

phal

Thank you,

Im not getting any flow at the pressure line at all (line on right in pic), so something is going on downstream.

thanks...gary

D2 Cat

The open line with no fuel indicates not pressure at the pump. Only other possibility I can think of is your fuel filter OK? Have you installed a fuel filter in a while? Before buying the pump you could replace the filter. Leave the new element dry and see if you get fuel into the filter body.

There are many choices for pumps and may opinions of what's the best. It all depends on your wanting more HP, your willingness to spend $, etc.

I got a relocation kit from Geno's and put my lift pump just in front of the fuel tank. Easy to get to, easy to change, and the pump is pushing fuel not pulling fuel--making it more efficient. Install a ball valve just before the pump and you can make sure you never have to take a fuel bath when servicing the pump in the future.

phal

I installed a new fuel filter before I started testing.

D2 Cat

Then it's lift pump failure.

phal

I ordered the 1998.5 - 2002 - FASS Direct Dodge Replacement Pump from DTR Performance today.

Thanks to everybody for the diagnostic help!.....gary