E-Fuel Woes.
Thread Starter
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Senior User
Joined: Aug 2013
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Just installed my E-fuel set-up but I've run into a problem.
My pump isn't sucking fuel from the tanks.
Everything is plumbed right. Even tried switching the supply/return lines coming from the selector valve thinking I might have mixed them up, but no dice.
Pump works fine, just not getting fuel from the tanks. I'm starting to think maybe my filters are the problem, although I did fill them before installing them.
Using a WIX 33367 Pre-Pump
And a WIX 33528
Any ideas or something I missed?
Starting to think I got a weak pump...
My pump isn't sucking fuel from the tanks.
Everything is plumbed right. Even tried switching the supply/return lines coming from the selector valve thinking I might have mixed them up, but no dice.
Pump works fine, just not getting fuel from the tanks. I'm starting to think maybe my filters are the problem, although I did fill them before installing them.
Using a WIX 33367 Pre-Pump
And a WIX 33528
Any ideas or something I missed?
Starting to think I got a weak pump...
Cargo Master
Joined: Nov 2010
Posts: 3,244
Likes: 40
You tried jumpering the pump? Run a wire from 12v to pump to push fuel through the lines.
Some of the pumps run, but run backwards, if the ground and power are reversed.
Could also be broken/cracked pickup tube/ clogged screen.
Some of the pumps run, but run backwards, if the ground and power are reversed.
Could also be broken/cracked pickup tube/ clogged screen.
Thread Starter
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Senior User
Joined: Aug 2013
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Without the pre-pump filter on, I can feel suction with my hand on the filter base.
Doubt it's a pickup tube problem that's just occurred now, everything worked fine with the stock set-up
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Senior User
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Here's a thought...
Last e-fuel I did, I remember when I cut the supply line from the selector valve, that it constantly drained, by gravity, like I would except it too. However, this truck doesn't do this...
Last e-fuel I did, I remember when I cut the supply line from the selector valve, that it constantly drained, by gravity, like I would except it too. However, this truck doesn't do this...
Postmaster
Joined: Mar 2004
Posts: 3,897
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mine syphoned fuel from the tank as well. Sounds like you may have a pickup problem or some form of air intrusion. Possibly from moving the fuel lines around.
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Senior User
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Any tips on how get this thing primed? I'm thinking a mighty-vac or something...
Maybe filling the other tank all the way and flipping the selector valve?
I could always just try to siphon it out like the old days with your mouth, but it's different when your laying down under the truck... I can't move as fast that a way and don't feel like getting a complete mouth full of diesel.
Maybe filling the other tank all the way and flipping the selector valve?
I could always just try to siphon it out like the old days with your mouth, but it's different when your laying down under the truck... I can't move as fast that a way and don't feel like getting a complete mouth full of diesel.
Post Fiend
Joined: Dec 2010
Posts: 10,121
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From: Orrville, Ohio
I would give it a shot with the Mightyvac. No reason not to, right? That will tell you if you're able to draw fuel through the line. If you get fuel that way, then you at least know you can look elsewhere.
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Joined: Sep 2003
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From: North East Ohio
Turn the power on to the pump, then stick a rag tightly into the fuel filler neck around the tip of a blow gun and use compressed shop air to lightly pressurize the tank. We have had to do this more than a few times for whatever reason, when priming a new or recently installed system.
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Postmaster
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From: Monroe City in
Which line did you hook up for supply on your selector valve. I find it hard that the electric fuel pump won't prime its self. When I did my e fuel I had it hooked up wrong but as soon as I switch them it took right off.
Postmaster
Joined: Mar 2004
Posts: 3,897
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electric fuel pump. It gets rid of the fluctuating mechanical pump and adds more consistent fuel flow
Hotshot
Joined: Dec 2005
Posts: 14,376
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From: evansville in
Also the stock system sucks in many ways...it is leak prone. Also a steady pressure will help idle quality. As soon as I installed a 50hp chip in mine. my then new pump with shimmed regulator for proper fuel pressure adjustment would not keep up. Under a hard pull pressure would drop from 75 at idle to 30 and dropping and I would get out of the throttle. IMO every one over these needs e-fuel if performance is to be added. Some have run off the stock system for a while but my opinion is it is a very basic mod to be done early in any "build" process.
Junior User
Joined: Mar 2013
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Ok. Now I know and right away I started thinking. My truck is a stock 97 350 dually, auto trans and 4:10 gears. 106,000 miles. I pull a 13,000 lb 5th wheel to Fla 3 or 4 times a year. Only mod is I installed a DP Tuner chip. Truck really pulls the camper very good. I put a boost gauge in yesterday. With the chip in the stock setting she makes about 15/16 lbs boost. I can kick the chip up to towing mode and it makes around 18/20 lbs. The truck really runs good and smooth with lots of power. I am trying to decide if I need to go ahead and put elec fuel pump. About how much does a good one cost and about how much could I expect to pay for install? Thanks, Mike
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Senior User
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Ok. Now I know and right away I started thinking. My truck is a stock 97 350 dually, auto trans and 4:10 gears. 106,000 miles. I pull a 13,000 lb 5th wheel to Fla 3 or 4 times a year. Only mod is I installed a DP Tuner chip. Truck really pulls the camper very good. I put a boost gauge in yesterday. With the chip in the stock setting she makes about 15/16 lbs boost. I can kick the chip up to towing mode and it makes around 18/20 lbs. The truck really runs good and smooth with lots of power. I am trying to decide if I need to go ahead and put elec fuel pump. About how much does a good one cost and about how much could I expect to pay for install? Thanks, Mike
First thing, you'll need to install an EGT gauge and get rid of the stock downpipe. High EGTs can ruin an engine QUICK. Before going to an Efuel, I'd look at adding these mods first. I'd also get rid of the restrictive air filter setup. Most guys got with a 6637 filter. The cost of the efuel set up really depends on which direction you go. There are several threads on DIY set-ups and I took what I liked best out of them and made my own. Going this route will normally set you back around $300-$600. That all what system you choose and your choice on parts.
A commercial kit will usually run around $800-$1200. Strictly diesel is one that comes to mind and they make a very good kit.
If you pay someone for installing the kit, add another $200-$400. Although, if you have any kind of mechanical ability, these systems aren't to difficult to install.
