7.3idi fuelpressure

[blakken]

i removed the mechanical fuelpump!
and installed an electrical pump. now the fuelfilter light come on when i go upphill.

what fuel pressure do i need when idling?
and what pump is good to use?

i have new filter. pump mounted after fsv and puch tro a fuel sedimentor.


i get 1.5psi idle and 4psi engine off.
10secunds pumping engine off i get 0.3pint


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[IDIoit]

I have my fuel regulated down to 6-7 psi @ idle with my holley

 

[79jasper]

1.5 is pretty low.
What are the specs of your pump?


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[icanfixall]

Your electric pump does not supply enough pressure or fuel volume to support the engine. Get a Facet duralift or a Carrier electric lift pump.

 

[blakken]

Your electric pump does not supply enough pressure or fuel volume to support the engine. Get a Facet duralift or a Carrier electric lift pump.

ok[emoji16] tanks i will order one dura lift.
tanks to all on this forum its great to have you all!



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[blakken]

1.5 is pretty low.
What are the specs of your pump?


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spec is 8psi and 30 gph.

but its a cheep pump.
i think its a chines copy off facet smal sqare pumps



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[Jerby]

Got a Holley red on mine. It has 8.5 psi at idle and 3 psi under full load. Which is too low. I just had it laying around so put it on. They require more than a person thinks.

Going to upgrade to a facet.

 

[IDIoit]

Got a Holley red on mine. It has 8.5 psi at idle and 3 psi under full load. Which is too low. I just had it laying around so put it on. They require more than a person thinks.

Going to upgrade to a facet.

that's about perfect. you will not see more with a faucet.
my holley is a black pump with a inline regulator
CDI flows these pumps with 5 psi

 

[icanfixall]

Another reason you can't get enough fuel to the injection pump is the filter you installed AFTER this electric pump. It might be making too much restriction of flow thru it. If your engine still has the original fuel filter in place why are you running an extra filter. Might take it off and see if that helps flow.

 

[blakken]

Another reason you can't get enough fuel to the injection pump is the filter you installed AFTER this electric pump. It might be making too much restriction of flow thru it. If your engine still has the original fuel filter in place why are you running an extra filter. Might take it off and see if that helps flow.

its not a filter iys a fuel water seperator.

You must be registered for see images attach

it would restrict so mutch?


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[icanfixall]

Thanks for the picture of the water separator. Best I can tell you is bypass it and see what happens. Why do you have this in the fuel line anyway? If you have the factory fuel filter it has a water separator built into the bottom of it. Please tell this forum what year this truck or van is.

 

[blakken]

Thanks for the picture of the water separator. Best I can tell you is bypass it and see what happens. Why do you have this in the fuel line anyway? If you have the factory fuel filter it has a water separator built into the bottom of it. Please tell this forum what year this truck or van is.

oo sorry!
its a 91 f-250 4x4

when i remanufaktured my ip her in sweden they told me it whas some rust in it. thats why i have it ther. thidint now i have it in standard filter[emoji849]


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[icanfixall]

The standard filter is on the engine passenger side at the front. It looks like an oil filter but has a seperate bottom aluminum cover with the water in fuel sender in it. They can be purchased new or used on ebay all the time. they will trap plenty of water and when they reach the sender the dash lite comes on telling you Water In Fuel. Then you open the drain in the bottom of the filter and drain it off.
Here is what the top and bottom of the filter heads look like.
http://www.ebay.com/itm/OEM-Genuine...ash=item35f7a1fcf6:g:gpcAAOSwk1JWdBa0&vxp=mtr

 

[IDIoit]

that water separator looks ideal for my set-up, ill be putting one of these on!

 

[austin92]

The facet's sediment bowl/filter housing also separates water


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