correct - this is what it should look like on an 01 - are you using a guage or a switch? The gauge is much better than a switch:

 

That is the one you should be using. It does NOT have an air bleed in it. Only the return line with the ball and spring in the banjo has an air bleed.

Dave

 

Yes, essentially we are looking for flow - the more flow the better because the VP-44 is lubed and cooled by the fuel. But, how will you measure flow without an expensive flowmeter? Instead, we use a guage to measure the pressure instead of flow. Most of the aftermarket lift pumps increase the line size to 1/2" so they can deliver more fuel to the VP-44.

Ideally, you will have 10 psi at WOT. The VP-44 will run on low pressure (5 psi or less), but that tends to be hard on it and can lead to premature death.

The new OEM pumps are crap - to get one that puts out enough pressure to keep your VP-44 happy, you have to go to the aftermarket.

 

If you follow it to the injector pump it will. Mine did.

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I knew you would soon be here Dr.

I am using a switch and a light. With everything stock. Warning of pump failure was all I was looking for. I assumed a stock set up would keep everything working fine. I put an Edge EZ on over the weekend also. This has no effect on fuel pressure everything stayed the same. Would it make any difference if the switch is in the bottom of the filter housing or as the fuel line goes into the injector pump? My friend with the 02' has everything the same as mine and no flashing light until he goes WOT with his hyperteck programmer on performance. 140 horses or so.

BB

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Is there a step between OEM and FASS etc...? With a three month baby I need to watch my spending. Wife not working and my $$ for toys has been taken for other things. Boat gone, 4-wheeler collecting dust etc...

 

There should be no bleed hole as it has nowhere to bleed to. The bleed hole is very small. We are not talking about the feed holes for the banjo.

However, it looks like you are at the correct port.

The only real step between the OEM pumps and the full FASS is the FASS HPFP. The FASS DDRP is a stock equivalent pump with a 4 year warranty.


Dave

 

Get rid of the idiot light and get a gauge!
Look at the Airdog they are on sale now for $399 with lifetime warranty. That's a heck of a lot cheaper than buying a new IP for $1200+

 

If you follow the line from the bottom of the filter housing to the VP44 my truck had a bango bolt with a bleed valve. It looked the same as the one in the back top of the filter housing. I took this out and replaced it with a bango bolt that I drilled and tapped 1/8" NPT for the pressure switch.

 

Bill, heres the thing, if you know anything about pressure switches - they fail AND they go out of calibration all the time - I dont have one on my truck but have calibrated many at work. The point is - if you dont have the calibration equipment and know-how to chekc the calibration of the pressure switch, the idiot light is useless.

You need more than a warning that the pump is going out. This is especially true when you are running the OEM Carter LP - you need to see a guage so you can see exactly what the output of the lift pump is. Generally, LPs tend to die over time, and you can generally see it happening. And NO the stock setup is not really adequate for even a stock truck. It doenst matter iif you are stock or bombed - you still need a mechanical fuel pressure guage. You can install a mechanical guage very cheaply if you dont mind running fuel into the cab (its really not a big deal at all).


Yes, you can get a stand-alone pump - but they cost almost as much as the bad boy with the filters. I would suggest the Airdog 150 as they are on sale right now. yes, they arent cheap - but, if you buy from an approved vendor - the pump is GUARANTEED FOR THE LIFE OF THE UNIT. I easily spent more money on the crap OEM Carter pumps than the Air Dog costs.

 

So my new pump is NFG. 12 PSI at cranking, 10 PSI at idle, 6-7 PSI normal driving and 2 PSI at WOT. I wonder it they will take it back?

BB

 

No the pump is fine by manufacturer specs - that is about average for the pumps they now sell. Did you get it from Cummins? I doubt very much that they will take it back but you could try.

Dont forget about putting a FP guage in....you should also have a Pyrometer and boost guage as well - they will actually save you money and are a great help when troubleshooting.