Other Guys With Fuel Sumps, Weigh In

[ARbowhunter7]

I love the simplicity of the fuel sump, but there's something that's been annoying me...fuel slosh. My tank is 34 gallons, but when I get to 1/3 tank or so, any sudden start or stop will take my FP from 45 psi to 0 psi momentarily. I get fuel, and top it off at 22 gallons, and that's it (in a 34 gallon tank). Anyone else run into this?

[ctdiesel99]

With a sump you're experiencing this?

I've purposefully ran out of fuel in my truck numerous times with our sump installed to test what you're running into. Every time i've ran out, i pulled the drain plug on the bottom of the sump and got a little trickle and that was it, sucker was about plum dry. Put 2 gallons in it to get me to the gas station, and got 33 gallons in it at that point to fill it up. Granted this was just normal driving, didn't hit any hills purposefully but there are some here around the shop and never really ran into an issue with it.

[ARbowhunter7]

Could my mounting position be a problem? It's dead in the middle of the tank.

[DirtyMaxx03]

shouldnt it be at the rear?

[madmikeismad]

Mine is also dead middle of the tank/slightly to the rear. I get this problem at an 1/8 tank, but I just take it slower till I get to a fill up spot. I don't like running it that low anyways. Mine would also slosh going around turns too fast or hills too steep. I always keep it over 1/4 tank now, except on road trips.

[madmikeismad]

Originally Posted by ARbowhunter7

Could my mounting position be a problem? It's dead in the middle of the tank.

Originally Posted by DirtyMaxx03

shouldnt it be at the rear?

From what I remember, the instructions from bean or the other one said use the lowest/flattest spot on the tank, which on mine was rearward of dead center.

[duck_04]

Thats one thing I hate about my draw straw. I can run it until the fuel needle is on the peg if I stay on fairly flat ground, but anything below a 1/4 tank when it sloshes my pressure will drop from 17psi to nothing until it sloshes back

[RonA]

Mine does the same thing.

[SKYNYRD]

I never had this issue with mine at all. you could try installing a ring with holes to allow the fuel to flow into the ring but hold the fuel when it sloshes around.

[TheBigNasty]

Originally Posted by duck_04

Thats one thing I hate about my draw straw. I can run it until the fuel needle is on the peg if I stay on fairly flat ground, but anything below a 1/4 tank when it sloshes my pressure will drop from 17psi to nothing until it sloshes back

Never had a problem with mine, but its a draw straw in a modified stock canister.

[Ktown6.0]

No pressure gauge here.

But, I can run the truck empty if I want. I have my sump approximate center. Just offset from the fuel gauge/sender assembly. I also don't like to have a super low amount of fuel in the tank.

The only thing I notice is when I do run it low and have to park on an incline or leave the truck sit, there is a lack of pressure held in the system and the truck is hard to start.

[duck_04]

Originally Posted by TheBigNasty

Never had a problem with mine, but its a draw straw in a modified stock canister.

I'm running just the regular metal draw straw beside the canister

[khaoskustoms]

Anyone ever tried fuel cell foam in the tank? I'm thinking about doing this to my Dakota tank. I'd like to try and control fuel slosh somehow. Fass' sump so far has the best idea for keeping fuel above the sump by putting the stock sending unit canister right over it. I've got a Beans sump on my Dakota and a draw straw on my 07. I haven't run my Dakota yet, so no personal feedback on the sump yet.

[Toolman]

Check out my sump in the B & B Tooling forum . I built it so it would hold fuel in the sump and wouldn't slosh out. It can be mounted in the back of the tank and you don't have to drop the tank. I have ran my truck at the track with the low fuel light on with out a problem I made it so I could run as little fuel as possible to race with but I still have the stock tank capacity if I want to street drive it somewhere.

[Smokie Okie]

Mine is mounted slightly rear of center and my fuel return dumps directly into it from the top of the tank. I haven't had any issues.

[Big Swole]

Never got to test mine that low, it would usually just blow up before going empty... lol



J/K


I liked the BDP Sump better than the draw straw.

[4x4dually]

Oooo...pretty.

[ctdiesel99]

Originally Posted by khaoskustoms

Anyone ever tried fuel cell foam in the tank? I'm thinking about doing this to my Dakota tank. I'd like to try and control fuel slosh somehow. Fass' sump so far has the best idea for keeping fuel above the sump by putting the stock sending unit canister right over it. I've got a Beans sump on my Dakota and a draw straw on my 07. I haven't run my Dakota yet, so no personal feedback on the sump yet.

I wouldn't recommend running foam w/ diesel fuel

[Lostnwalmart]

I have never had an issue with mine and have run it hard under 1/4 tank. But my pump is below the tank as well.

[ctdiesel99]

Originally Posted by Ktown6.0

No pressure gauge here.

But, I can run the truck empty if I want. I have my sump approximate center. Just offset from the fuel gauge/sender assembly. I also don't like to have a super low amount of fuel in the tank.

The only thing I notice is when I do run it low and have to park on an incline or leave the truck sit, there is a lack of pressure held in the system and the truck is hard to start.

We usually mount ours underneath of the stock canister: