Performance and Accessories 2nd gen only Talk about Dodge/Cummins aftermarket products for second generation trucks here. Can include high-performance mods, or general accessories.

Put my FASS 150 on today...didnt go as expected

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Old 10-22-2006 | 02:57 AM
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Put my FASS 150 on today...didnt go as expected

After sitting in the living room for a couple months I finally put my FASS on today after my fuel presure started bouncing around. I have read alot about them and the install, but it did not go as I expected. To start with the bracket on the frame would not come close to working like the instructions said. There was not nearly enough room on my e-brake cable bracket for the FASS bracket. I had the bracket welded to the body mount right infront of the e-brake bracket. After some grinding and drilling a couple of new holes I was able to bolt the FASS to the bracket to my liking.
After it was finally mounted the return and feed line hooked up fairly easy. Its now time to run the line up to the engine so I read on into the directions. The directions actually say 2 different things. The diagram clearly says the FASS hooks straight to the injection pump, but when you read the step by step directions it says it hooks to the lift pump. After all my reading on here I know its suposed to go to the injection pump. BUT, the kit did not come with any tye of fitting to conect the hose to the injection pump or anywhere else. I was able to use part of my existing fuel line fittings to make it work. (the truck had a wildcat high flow kit on it when i got it) So now that I got the fitting figured out I ran the hose and found that what came in the kit was 2 feet short Starting to get annoyed by this time, but I went to the parts store and got some more fuel line. Then I hooked up the power and ground, bleed the system and it was ready to start. First thing I noticed when it started was there was no change, I still had 15 psi at idle. When I touched the gas(in nuetral) the presure would drop. I was under the impression going into this that I would have more presure and that it would be constant even when I was on the gas. Driving around it would drop down to about 11-12 psi when it was wide open, pretty much what it did with a plain jane lift pump.

So after all this I feel like I could have replaced the stock lift pump, had the same presure, had a much easier time, and come out much cheaper.

But maybe thats just me....anyone else have any similar problems?
Old 10-22-2006 | 03:03 AM
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From: Canuckistan
That's why I like the OEM lift pump with the vulcan relo kit. Easy and no hassles.
Old 10-22-2006 | 06:38 AM
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I have the FASS II and the install went very well. The only problem was not having an angle drill to mount the pump bracket. A regular drill worked, but an angle would have made it easier.
As far as pressure, that has not been a problem. It started out at about 25, the settled to about 19 and 16/17 at WOT. If you are using a needle valve, you might try adjusting it. I know if mine is cranked way down, my gage does not show actual pressure.
Old 10-22-2006 | 08:09 AM
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Must be air in it somewhere. something is wrong. I have 22psi on a Fass95 and it wont drop a bit ever.
Old 10-22-2006 | 08:55 AM
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Put 100 miles on the pump. There is something about the FASS pumps that they settle down at the 100 mile mark.
Old 10-22-2006 | 10:45 AM
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Ill give it a while and see if the presure gets any better. I probably did not get 100% of the air out.

For those with the kit did your frame bracket just bolt on like the instructions said? There is no way it was going to work on my truck. I looked at my buddies 01.5 HO and his was the same, bracket wouldnt work.

What did you guys use for the fitting on the injection pump? I was able to find something that would work, but I am curious what others did.
Old 10-22-2006 | 02:10 PM
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I don't remember where my kit came from, but it had all the fittings and hose to run from the filter to the VP44. If I recall correctly, the kit for yours will have a banjo bolt at the VP44 that has an outlet for a fuel pressure gage. Check the advertisers in the "Links", above, and you'll probably find a few to choose from.
Old 10-22-2006 | 11:11 PM
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on my 01 the kit had a fitting that was a ntp thread with a o-ring that went into the vp with a -06 an style male fitting on the other end that hook to the supplied pushlock fitting that went into the fuel line and i had about a foot of hose left after my install also kit was missing the 4 small nuts that attach the pump to the brackets but what kind of tool box dont have a couple of 1/4 - 20 nuts in it and i had no problems with the brackets my ? would be did yall get the correct kits sent to you
Old 10-22-2006 | 11:16 PM
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as well here not trying to bash nobody here but i ordered mine from shield deisel and wanted the 150 (gage setting on 5 psi at idle 0 at wot) so i had to have 1 fast they told me it would be about 5 working days before they had a 150 in for my truck so i went with a 95 when i got it the box said 95 but the pump has 150 on it so you tell me which 1 i have
Old 10-23-2006 | 09:52 AM
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Here are the install instructions for your FASS on your truck (NOTE: This is for the FASS….not the HPFP)

Please point out to me where it states to install to the lift pump. Hose hook up starts on Page 15. We are currently going through our install instructions to make them more clear. I am taking suggestions and filtering them to Brad.

The frame bracket install you did correctly. You should have use the pic in 2E and 2F to do the install. You do not use the bracket that the E-brake cable runs through. Refer to the "NOTE" after line #3 on page 14.

In the fnt of the install instructions, you should have an "Included Parts Sheet” brake down. It gives part numbers of most everything in the kit. Get the part number of the item you were missing and contact your dealer. They will need a serial number to link it to.

As far as pressure goes, we dropped our pressure due to people wanting it lower about 2 months ago. It sits around 13 for the 95 GPH units and 14 for the 150 GPH units. My truck at WOT pulls mine down to 11.5 PSI....MORE than enough for the VP-44. Most will see about a 1.5-2 PSI drop under high demand situations. This is normal due to the increased flow needed to supply the injection pump. As far as i can tell, you are right where you need to be. Sure the stock Carter was exactly the same....but let’s see where that stocker will be at in about a year or two.

As far as the hose....you should have had more than enough. I can only see you being shorted if you were extra generous with your suction line and return line going to the fuel tank. Most times i would have about 1.5 feet left over from the install.

possum67:

Here is a part number brake down:

FASS XXX/XXX-XXXX

“FASS” tells you what unit you have

First set of “XXX” are what series you have --
95 Series --


150 Series (NOTE: This units picture still has the older motor on it....the motor will be the same as on the 95 series pic) --


2nd set of "XXX" tell you what GPH you have -- 95, 150 or 200

3rd set of "XXXX" tells you what application the units is set up for. 1000's are Dodge, 2000's are Ford and 3000's are Chevy


HPFP-XXX-XXXX --

"HPFF" tells you this is a High Performance Fuel Pump

1st set of "XXX" is flow rate

2nd set of "XXXX" is the truck application

Let me know if that helps……
Old 10-25-2006 | 06:49 PM
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Thanks for the reply Dan.

Originally Posted by Diesel-Dan
Here are the install instructions for your FASS on your truck (NOTE: This is for the FASS….not the HPFP)

Please point out to me where it states to install to the lift pump. Hose hook up starts on Page 15. We are currently going through our install instructions to make them more clear. I am taking suggestions and filtering them to Brad.
In my instructions for model # 150/95-2012 and 150/150-2012 page 12 step 6. " Measure and cut to length the fuel line from the port labeled E of the FASS System to the suction port of the electric lift pump. Connect this fuel line using a 3/8 hose clamp, make sure to slide the fuel line up and over the lip located on the factory lift pump. Torque to proper specifications.

I graduated from a small college, but to me that says it hooks up to the lift pump. Luckely I knew this was not correct.


The frame bracket install you did correctly. You should have use the pic in 2E and 2F to do the install. You do not use the bracket that the E-brake cable runs through. Refer to the "NOTE" after line #3 on page 14.
Page 14 in my instructions is the final check. Even if I did have the proper instructions the bracket could not bolt to the body mount without customizing it.

In the fnt of the install instructions, you should have an "Included Parts Sheet” brake down. It gives part numbers of most everything in the kit. Get the part number of the item you were missing and contact your dealer. They will need a serial number to link it to.
That would be easy if what I needed was listed in the parts sheet. I received everything thats listed, plus an extra 3/8 quick disconnect. There is nothing listed in the instructions that would come close to connecting a fuel hose to my injection pump.

As far as pressure goes, we dropped our pressure due to people wanting it lower about 2 months ago. It sits around 13 for the 95 GPH units and 14 for the 150 GPH units. My truck at WOT pulls mine down to 11.5 PSI....MORE than enough for the VP-44. Most will see about a 1.5-2 PSI drop under high demand situations. This is normal due to the increased flow needed to supply the injection pump. As far as i can tell, you are right where you need to be. Sure the stock Carter was exactly the same....but let’s see where that stocker will be at in about a year or two.
I was not aware of this change. As long as you say mine is performing as it should I am fine with that.

As far as the hose....you should have had more than enough. I can only see you being shorted if you were extra generous with your suction line and return line going to the fuel tank. Most times i would have about 1.5 feet left over from the install.
I left a small amount extra at each end incase I have to disconect them for any reason. I would assume this was taken into consideration when putting the kit together and enough should be included. There is no way the small amount I left at each end would come close to the foot and a half I was short.
The bottom line is I am not very pleased with the pump so far(I know its not your fault Dan, but maybe you can set things straight for the future). On top of the install leaving alot to be desired the fuel system does not seem to be staying primed. In the morning or if the truck has been sitting for several hours it takes a few cranks for it to start. I am about to check the system to see if there is still air in it.....
Old 10-25-2006 | 07:48 PM
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Just worked on getting all of the air out of the system again. I bled the air out before the IP then tried at the injectors. With the key turned on and the FASS pumping should I get fuel through to the injectors? because I wasnt. The system still does not seem to stay primed. I did not drive the truck today and tonight it took a few cranks after bleeding a little more air out for it to start. Any ideas?
Old 10-25-2006 | 07:53 PM
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Good question, but I don't think the FASS can push fuel that far. I know you have checked and rechecked everything, but it sure does sound like air is getting in someplace. Just for kicks, have you rechecked the fitting on top of the fuel tank?
Old 10-25-2006 | 08:13 PM
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Checked it for leaks, but not to see if air is getting in. Is it bad for the IP if air is getting in the system?
Old 10-25-2006 | 08:20 PM
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I know the general consensus is that not enough fuel flow is bad for them. I guess that if you were getting air continuously, you would be losing some fuel flow.


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