[Chris90F250Diesel4x4]

1. Have determined that I am getting air intrusion overnight due to the return lines and want to get a rebuild kit. Is this one I found on Amazon a good choice for my 90 F250 7.3 ?
Delphi 7135-264 Fuel Injector Installation Kit $32.78

2. When running on the rear tank my truck stalls out if I let the tank get below 1/2 tank. Am I correct to assume this means there is a hole in the fuel pickup tube that lets air in when I get down to 1/2 tank? What is the part called that I need to replace? Is it called the "Fuel Sender"?

3. When filling the rear tank of my truck with diesel the gas pump keeps shutting off as the fuel backs up as if it was full even though the tank is only at 3/4. I can get the tank full but it takes a long time of slowly filling. Is this a problem with the vent tube? Possible to replace just the vent tube or best to just buy a whole new filler tube for the tank?
Thanks,
Chris

 

[RI_90_F250_7.3]

You can get that same kit at RockAuto for $26.79. It is the kit I used on my 90 F-250 and had no installation issues and solved my air intrusion issue.

 

[LMJD]

You've got to watch what you buy, quite a few guys had had fits with some of the cutrate offbrand kits. The quality Dipaco brand that most good injection shops carry is best out there and still in the $30 range IIRC.


Also, I didn't know this until an injection shop guy told me a while back. Some of the early 7.3's used the 3/16" drainback hose like all the 6.9 engines rather than 1/4", so with a '90 7.3 you might want to check before ordering.

 

[Bill1013]

Your's from Amazon or Rockauto is what you need. Look for free shipping.

Your problem in the tank is that your pickup screen has fallen off or disintegrated, requires that the tank has to be dropped to replace. It is not the sender as a whole. This is what you need to replace. They are all the same from 83 to 2016 IDI and Powerstroke. These are also available on Amazon, order both to save shipping. A dealer cost is around $50.
Powerstroke Diesel Fuel Tank Pick Up Screen Genuine Ford F250 F350 F450 F550 | eBay

When replacing the return line injector hoses, caps and O'rings. Be sure and use plenty of Vasoline or most any kind of grease to lube to O'rings and caps. Install the 1st O'ring in the 1st groove, then roll the second O'ring over it to bottom groove. Cut hoses to length so they don't push the caps or they might leak.

 

[Bill1013]

. When filling the rear tank of my truck with diesel the gas pump keeps shutting off as the fuel backs up as if it was full even though the tank is only at 3/4. I can get the tank full but it takes a long time of slowly filling. Is this a problem with the vent tube? Possible to replace just the vent tube or best to just buy a whole new filler tube for the tank?
Thanks,
Chris

The vent on top of the tank can get plugged by insects "spiders". Search for what is called the "HUTCH Mod", to relieve the tank air.

 

[Chris90F250Diesel4x4]

Thanks everyone for the info!
Thanks Bill for the pickup screen eBay link. I will order that from eBay as well as get the return line kit from Amazon or Rock Auto.
Question Bill: I looked up Hutch Mod but along with it found info on the Harpoon Mod. I think it is the Harpoon Mod you are talking about to help with the slow filling at the gas station issue?
The Hutch Mod looks to be something different and more involved and I'm not sure of the purpose but am I correct that the Harpoon Mod is what I would do to help with the slow filling at the gas station?
Chris

 

[Bill1013]

Yeah, the Harpoon Mod. Had a brain fart.

 

[jmadigan]

If its not a braided line then dont get it. Make sure the line is rated for high pressure im not sure what it is but i know if it dosent have braded fibers around the outside it will swell and blow.

 

[LMJD]

im not sure what it is but i know if it dosent have braded fibers around the outside it will swell and blow.

No it won't, there's small sized non-braided hose used on diesel trucks for the air powered wipers, air brake valves, etc, that's good for 200-300 psi. It's a matter of buying the right hose and knowing what to ask for. Same applies to the tiny 1/16" and larger nylon (plastic) hose.

 

[Chris90F250Diesel4x4]

THANKS!

 

[chuckster57]

Only "high pressure" stuff on an IDI is the steel lines from the IP to the injectors.

 

[jmadigan]

Oh.. whoops i did research you guys are right. I just remembered reading something about why they should be braided lines. But that was a couple years ago.