Engine/Transmission (1998.5 - 2002) FASS Installed

[DirtyDodge]

Finished installing my new FASS system this morning. Fired up on the first try! I am happy to be done with the factory lift pump Oo.



Has any one out there with the FASS system had any problems down the road with the clampless hose push on fittings? I don't have any leaks, but have never seen this type of connection before. I was just curious how they hold up for the long hall.



Thanks,

Derek



P. S. MERRY CHRISTMAS!!!

 

[Mad Bomber]

Finished installing my new FASS system this morning.



Has any one out there with the FASS system had any problems down the road with the clampless hose push on fittings?

Thanks,

Derek



P. S. MERRY CHRISTMAS!!!

YES they are imposable to get on and the only way to get them off is to cut the hose. I've used the clapless hose 4 years no problems

 

[RAJohnson]

Glad to see you got it on, Oo. Oo. No problems here with the push on hose fittings either. Whats your pressure's at.



Merry christmas, Rob

 

[steved]

I believe the clampless style will actually exceed the burst pressure of the hose if propoerly installed.



steved

 

[DirtyDodge]

Glad to see you got it on, Oo. Oo. No problems here with the push on hose fittings either. Whats your pressure's at.



Merry christmas, Rob

Rob,



Unable to read pressure. Was using shrader valve to get fuel pressure. I have to come up with another way to get my fuel pressure reading. I plan on taking care of this problem this next week. Won't be driving truck much untill I can get an acurate reading. I feel like I am flying blind here.



Open to any suggestions...



Thanks,

Derek

 

[CGlickert]

I also have a FASS 150. I have had to prime it twice. Once when it was new and once ran out of fuel. Both times took about 30 min to do. The stock pump is much easier to prime. Are you guys having the same problem? My truck is a 2000

Besides that I love the pump. 16. 5 psi at idle, no less that 13 at wot



CGlickert

 

[steved]

Mine primes both filters within two cycles of the key "bump" (ie. running the pump for around a minute. I can prime the particualte filter in less than the 25 second key "bump" cycle.



I would be looking for a leak or restriction in the line from the FASS to the tank... maybe the fuel tank connector got damaged (oring) during installation and is leaking air?? Maybe the fuel tank "strainer" is partially plugged. I would start by looking at the connector on the fuel tank inlet... you can get these from any parts house that handles Dorman pieces if you find you need one... it is a chrysler fuel fitting (I can get you a part number if you need it).



You should have no issues priming.



steved

 

[COWBOYDUALLY]

Ive never had a problem with my FASS. it seems like it cavitates though. i was reading another post on here and the feed tube in the tank is to small for the amout of fuel the system is trying pull to the pump. its been on the truck fo 1 and a half years. its never left me stranded unlike the very few unfortunates that end up with a bad fass system. 16psi at idle and 11 WOT. Ive been told by Chris Strickland at Relentless Diesel in Willis TX that i shouldnt have such a dramatic drop in fuel press, when i get back to the states im going to drop the tank and investigate. Have any of yall had the same cavitation noise that I have? Jeremy

 

[CGlickert]

I have read several times that the factory pick up is to restrive for the 150, and have been planning to replace it with something. Just have not done it yet. I hope you are correct and that is where my problem is.



CGlickert

 

[COWBOYDUALLY]

yea i read that on one of the tdr posts on here. it sounds logical as to the problem associated with the "cavitation problem" if it isnt the problem while the tank is down im going to go ahead and put a bigger feed tube in place of it, cant hurt. at least i know the volume capacity would be up! Jeremy

 

[steved]

I only have a 95/150... and no cavitation issues.



Since the pickup tube is the only piece left "stock" when you install the FASS... that has got to be the restriction in the system.



steved

 

[COWBOYDUALLY]

hey steved, have you seen the feed tube from the tank? im wondering what size it would take to correct the problem. Jeremy

 

[steved]

hey steved, have you seen the feed tube from the tank? im wondering what size it would take to correct the problem. Jeremy

Looked like something around 1/4" to me (most likely metric)... small when compared to the FASS 95's 3/8" hose. If you remember your FASS install, the "connector" that hooked to the tank actually was the most restrictive piece of the FASS because of the crimped nipple. I drilled this piece out (the crimp closed the end down pretty good) to the inside diameter (added almost 1/8" diameter to the ID of that restriction).



I only get minor cavitation during fill up (while the truck is running) and when running with less than a 1/4 tank of fuel (assume it must be slosh??).



Oh, and look up the "vulcan big line kit"... something like that. I think it is Vulcan Performance.





steved

 

[RSimmons]

Rob,



Unable to read pressure. Was using shrader valve to get fuel pressure. I have to come up with another way to get my fuel pressure reading. I plan on taking care of this problem this next week. Won't be driving truck much untill I can get an acurate reading. I feel like I am flying blind here.



Open to any suggestions...



Thanks,

Derek

If you are using an electric gauge, there is a gauge port provided on the FASS pump. I guess it could be used with a mechanical setup as well but would be a bit more trouble to run the line all the way back.



The entire pressure issue is strange. I just installed a FASS 150/95 on a 2000 HO and hold 20 LB pressure at idle and 16~18 wide open. The stock pickup tube assembly is still in use as well. There seems to be quite a variation in the pressure of these pumps right out of the box.

 

[COWBOYDUALLY]

pickup tube

quarter inch aint much,when i get back to the states im addressing that issue for sure. ive never heard of the fuel press gauge hook up on the actuall pump,thats pretty interesting,i sure would like to have that also with my existing press gauge ive got. where is the hookup on the FASS for that?

 

[Highfinance97]

Cowboy on the pump side near the frame there is a port with a letter "G" next to it for your gauge.



Michael

 

[DirtyDodge]

If you are using an electric gauge, there is a gauge port provided on the FASS pump. I guess it could be used with a mechanical setup as well but would be a bit more trouble to run the line all the way back.



The entire pressure issue is strange. I just installed a FASS 150/95 on a 2000 HO and hold 20 LB pressure at idle and 16~18 wide open. The stock pickup tube assembly is still in use as well. There seems to be quite a variation in the pressure of these pumps right out of the box.

I am using the stock pickup tube as well. I am anxious to find out what pressure this thing is providing to my VP. I will post my results when I get a guage installed.

 

[CGlickert]

I hooked my pressure gauge right before my VP to show if something happens between the FASS and the VP.



CGlickert

 

[foolkiller]

hey folks, newbie here,



my FASS is one of the few mods i've made that works exactely like i was hoping. i have the guage hooked up at the FASS with 18PSI at idle and never below 14 under any conditions. i'm using the stock pick up and never noticed any problems. what makes you suspect the cavitation you're disscussing here? a noise?



also, it's been in about a year and i've never done anything with the water separator. what do i do with it? just open the nut on the bottom and let it drain?

 

[COWBOYDUALLY]

Fass

hey foolkiller,

the fass pump is a positive displacement pump, to explain the noise is well difficult to explain on the internet, but chances are you dont have this problem, as for interval changes on fuel filter and water separator. you need to change the two for these reasons. #1 when hurricane Katrina hit louisiana it shut down most all fuel production for a month,therefore fuel oil was being squeezed from every possible source. my dad that runs hotshot trucking in central tx to alabama was changing filter and water separator every week :--) the government was allowing the company to run farm fuel and anything else that would burn in a diesel. fuel is certainly not as good as it used to be but production is certainly picking up so no worries. also diesel fuel has a ability to grow fungus or alge. if ran on a normal basis this usually wont happen due to flow and turbulence keeping particles from staying in one place. but change the two anyways for peace of mind, you and your FASS will be much happier Jeremy