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Potential emergency fuel pump?

clandr1

clandr1

1/2 ton status
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Oct 30, 2009
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I saw this on Amazon's website, and it looks strikingly similar to the factory fuel filter.

Do you think this would be a good item to have if my fuel pump failed on me in the boonies? Assuming the threads match the fuel filter, of course.

If not, what sort of setup do you have/use as a backup in case the factory fuel pump takes a dump?

http://www.amazon.com/Airtex-E3309-Electric-Fuel-Pump/dp/B000C1KJ12/ref=au_pf_pfg_s?ie=UTF8&Model=V1500%20Suburban%7C503&n=15684181&s=automotive&Make=Chevrolet%7C47&Year=1989%7C1989&vehicleType=automotive&newCar=1&carId=002

41Q8CnYEgPL._SL500_AA300_.jpg
 
Would that pressure be enough to allow the truck to at least limp home? Or would it not even be enough to keep it running? If I remember right required PSI is between 9-12.
 
Maybe idle all the way home, at 8psi, you're going to be barely idling at that. Any touch of the throttle and it's gonna spit, sputter, backfire through the intake, cough lag,, you name it, all but want to go.
 
you need something in the 20 PSI/45 GPH range...be plenty fine.

like this Carter, or this Airtex
 
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Good deal, I'll check my factory service manual and see if I can dig up the PSI specs. Thanks for the links 62.
 
This is an interesting idea - because the fuel filter is accessible. Has anybody tried using an external pump to draw fuel through a dead in-tank pump? I'm just wondering if the concept itself is good.

For emergency prep, why not prep the floor with a little trap door and keep a replacement pump on hand instead?
 
clandr1 said:
Good deal, I'll check my factory service manual and see if I can dig up the PSI specs. Thanks for the links 62.
Click to expand...


All part of the service...:waytogo:

Blue85 said:
This is an interesting idea - because the fuel filter is accessible. Has anybody tried using an external pump to draw fuel through a dead in-tank pump? I'm just wondering if the concept itself is good.

For emergency prep, why not prep the floor with a little trap door and keep a replacement pump on hand instead?
Click to expand...


I have often heard fuel will flow throuigh a dead pump, but I've never tried it...:dunno:

Quite a few folks here have done the trapdoor mod. That's my plan if I go with F.I. on my 'burb.
 
i have seen some competition trucks run dual electric fuel pumps on seperate switches. so if one dies, they just turn that one off and the other one on and away you go.
 
Blue85 said:
This is an interesting idea - because the fuel filter is accessible. Has anybody tried using an external pump to draw fuel through a dead in-tank pump? I'm just wondering if the concept itself is good.

For emergency prep, why not prep the floor with a little trap door and keep a replacement pump on hand instead?
Click to expand...

Yes, I have used a low pressure electric fuel pump to pull gas out of the tank, did it when the truck quit running on me in Indiana, I decided to fly back to Phoenix, the tank was full, so I removed the inline filter, stuck a rubber hose on the hardline and hit it with 12 volts. Took it awhile, but I got most of the gas out into cans so it could be used in mothers truck.

I really dont think you're going to be able to supply enough pressure pulling through a dead in-tank pump to supply enough pressure to keep a tbi engine running good enough. I know the pump I was using was capable and should have been pulling a lot more flow.than it was.
 
With a stock TBI in tank pump pushing to a mechanical pump on the engine, I'm getting 7-9 psi currently. (Middle gauge in pic below) I will tell you that an external may not have a problem sucking through a dead pump at idle, but as soon as you take off it's going to hate you and not run worth a ****.

IMG_20120422_191452.jpg
 
it could probly get you off the trial at idle on flat ground,but how many trails have a perfect flat ground return to the parking lot?if you could get the same pump in a 40psi range,maybe it would cut in half from the resistance from the in tank pump and run 20 to the engine.i bet it would heat up quick from the abuse though.
 
Blue85 said:
For emergency prep, why not prep the floor with a little trap door and keep a replacement pump on hand instead?
Click to expand...

I'm thinking this is the way to go. Does anyone have a link to a thread where someone walked us through the process?

It would be easy enough to cut a hole in the floor, but I'm wondering what would be the best way to support the cover since the floor isn't flat.
 
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