In tank fuel pump???

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The electric port on top.. the big port is for the fuel pump/sending unit/ground/reference.
The small one is for the Fuel tank pressure sensor..
 
Does your engine have a return to it? I'd think yes but.
 
My advice is to get an OEM pump/sending unit from a salvage yard. The last one I got only cost about $60 and it had less than 25k miles on it. If you weld in the OEM snap-ring assembly, it makes it very easy to install/remove the whole pump/sending unit if you need to replace the pump later on.

If memory serves you have a 2001 5.3L. This will have the older style "return line" fuel system, so you will need to have that plumbed in or just get a 2000-2003 pump/sending unit.

Oh....and never take advice from a geologist!
 
My advice is to get an OEM pump/sending unit from a salvage yard. The last one I got only cost about $60 and it had less than 25k miles on it. If you weld in the OEM snap-ring assembly, it makes it very easy to install/remove the whole pump/sending unit if you need to replace the pump later on.

If memory serves you have a 2001 5.3L. This will have the older style "return line" fuel system, so you will need to have that plumbed in or just get a 2000-2003 pump/sending unit.!

Good advise, I was trying to do exactly this whn I ended up making my own (custom is a PITA sometimes)

Oh....and never take advice from a geologist!

Got that right Jack.
;)
 
Does your engine have a return to it? I'd think yes but.

Afaik. Yes. Off the fuel rail there are two ports, one over the other. I'm assuming one would be the return.
 
My advice is to get an OEM pump/sending unit from a salvage yard. The last one I got only cost about $60 and it had less than 25k miles on it. If you weld in the OEM snap-ring assembly, it makes it very easy to install/remove the whole pump/sending unit if you need to replace the pump later on.

If memory serves you have a 2001 5.3L. This will have the older style "return line" fuel system, so you will need to have that plumbed in or just get a 2000-2003 pump/sending unit.

Oh....and never take advice from a geologist!

That is good advice that I didn't think of. Auto wreckers would probably have one hangin around. Thanks for posting up.
 
My advice is to get an OEM pump/sending unit from a salvage yard. The last one I got only cost about $60 and it had less than 25k miles on it. If you weld in the OEM snap-ring assembly, it makes it very easy to install/remove the whole pump/sending unit if you need to replace the pump later on.

If memory serves you have a 2001 5.3L. This will have the older style "return line" fuel system, so you will need to have that plumbed in or just get a 2000-2003 pump/sending unit.

Oh....and never take advice from a geologist!

BTW, what IS the older style return line? What is different about that?
 
BTW, what IS the older style return line? What is different about that

"Older style" simply means those engines that require the use of a return line.

Prior to 2004 the Vortec and LS engines had the fuel pressure regulator positioned on the fuel rail. This location requires a return line from the fuel rail back to the tank. In the newer models the regulator is located in the tank as part of the pump/sending unit. With this configuration you do not need a return fuel line, just the pressurized and regulated from the tank to the engine.
 
"Older style" simply means those engines that require the use of a return line.

Prior to 2004 the Vortec and LS engines had the fuel pressure regulator positioned on the fuel rail. This location requires a return line from the fuel rail back to the tank. In the newer models the regulator is located in the tank as part of the pump/sending unit. With this configuration you do not need a return fuel line, just the pressurized and regulated from the tank to the engine.

Alright...So Im assuming that is what I have since its an 01'. I think I had seem the FPR off the DS of the throttle body??? Am I also right in assuming that since there are TWO ports off the rail that ONE of them is the return?
Would it be advisable to run another FPR in the system, or is THAT ONE enough?
Im in a holding pattern on this tank till I know EXACTLY what I wanna do. Would HATE to have to do this twice.
 
You have a pic of the fuel rail?

There should be a main feed line to the and then the FPR I believe is run off of engine vac with a line bleeding off of it as the return.
 
You have a pic of the fuel rail?

There should be a main feed line to the and then the FPR I believe is run off of engine vac with a line bleeding off of it as the return.

Can snap one tomorrow!
 
I used this - I thought it was a great solution. Kit came tight and works well so far.

Fuel Pumps

NICE!!!
How long have you been running it for?
Does the tray weld to the bottom, or do you just drop the whole thing in?
Where did you position it on your tank?

I came across that site, but I was looking at the tanks specifically trying to avoid building my own. Interesting.

Thanks for posting up!
 
Boy, I would have loved to have seen that site when I built my own lol.
 
Does the sump HAVE TO BE toward the rear?
The space gets tight the further back I go as far as tub clearance.
 
Man, my inline pump cost me $100 and it took 20 minutes to install on my framerail and I only need a $3 filter cuz its on the inlet/suction side and doesnt need fittings to handle any pressure. Its an airtex pump that fits about 70 different fords, lincolns and mercurys.

It would take me about 10 minutes to change it out if it ever failed and would only need a screw driver and a cresent wrench.

I enjoy being able to look at my cheap clear plastic filter to see whats in it for dirt or moisture. I still have my stock 22re high pressure filter on the side of the block after the pump on the pressure side.

Thats just me tho. Cheap and simple. KISS.
 
Man, my inline pump cost me $100 and it took 20 minutes to install on my framerail and I only need a $3 filter cuz its on the inlet/suction side and doesnt need fittings to handle any pressure. Its an airtex pump that fits about 70 different fords, lincolns and mercurys.

It would take me about 10 minutes to change it out if it ever failed and would only need a screw driver and a cresent wrench.

I enjoy being able to look at my cheap clear plastic filter to see whats in it for dirt or moisture. I still have my stock 22re high pressure filter on the side of the block after the pump on the pressure side.

Thats just me tho. Cheap and simple. KISS.

Just out of curiosity, how often has it gone out if at all. Quite honestly , I do like the simplicity of the in line pumps, but there does seem to be a high frequency of failure with them. I tend to be on the cheap side as well, but... If it's a bit more effort and money for greater long term reliability, it might be money and time well spent. I'm still very open to suggestion on the topic.
Thanks for the input. This whole deal is more than I've ever done, so this is a learning experience for me to say the least.
 
I havent had it on there for very long yet.

I have two friends that have been running this setup for over a year tho.

My pump came with a one year warranty and is as easy to change as my filter if it ever needs it.

I can take some pics of my fuel system if you like?
 
I've had it running for about 9 months or so with no issues. I swapped in a '08 5.3 so I plumbed the regulator/filter in tank as well. The hole/bung is big enough that all of that just barely fit in on one shot into the tank. The pump in the tank keeps it quiet. My original idea was to weld in a bung and use a factory pump. That got to be complicated and sourcing a bung to weld in expensive. A custom tank is crazy expensive. I did modify the tray a little too, it is pretty long. I chopped a little over an inch out of it and welded it back together. I haven't had any problems with pick up or delivery.

The only problem I had is that I forgot to bend the fuel level float over a little to clear the bracket so it only shows a 1/4 tank and less. DOH! Someday I'll get motivated to pull it all apart and fix it.
 
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