Help it won't run!

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May 5, 2024 | 03:56 PM

#16

manicmechanic007

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Joined: Jul 2020

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From: Near Salt Lake City

You are talking about the same part
The canister is the crossover valve also called a dual fuel reservoir
Chevy, Ford and Dodge all had them
You should be able to get your truck to run on one tank until you find a new valve
Leave the crossover valve out of the mix and run rubber fuel injection hose and a few adapters made from old lines
Route around the crossover valve and into the line going to the frame pump
Don't be too surprised to find out both your new fuel pumps are no good if that's the case

May 5, 2024 | 07:39 PM

#17

My4Fordtrucks

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Quote:

Originally Posted by manicmechanic007

You should be able to get your truck to run on one tank until you find a new valve….
Don't be too surprised to find out both your new fuel pumps are no good if that's the case

Why does he need a new DFR? Where has it been established that is the cause for no fuel at the engine?
Yes, which is why I mentioned that the pumps could be wired backwards from the factory.

May 5, 2024 | 09:46 PM

#18

88f351

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4wd Low

Joined: Apr 2024

Posts: 14

Likes: 1

SUCCESS

SUCCESS SUCCESS SUCCESS!!!
THANK YOU ALL!
007 Was right I did just as you said
I opened the canister the springs were rusted and it reeked of old gas
I jumped the canister with flex fuel line it RUNS I have a lot left to do but
I kno now that it will run! Thanks so much to everyone..!

May 5, 2024 | 09:50 PM

#19

manicmechanic007

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From: Near Salt Lake City

Been there, done that is why
Besides, I told him to test around it, not replace it
Now that he has done that, he knows he needs one

May 5, 2024 | 09:53 PM

#20

manicmechanic007

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From: Near Salt Lake City

He also said he had 30 psi at one point after replacing the pumps
Meaning they were not wired backwards

May 5, 2024 | 10:10 PM

#21

Soup bean

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Joined: Aug 2021

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From: Maryland

Quote:

Originally Posted by 88f351

I would soak that Dual Function Reservoir in large amounts of WD40. There's a slim chance you can free it up. For a few dollars of WD40 and some time, it might be worth it. They're expensive.

May 6, 2024 | 07:07 AM

#22

My4Fordtrucks

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Quote:

Originally Posted by manicmechanic007

He also said he had 30 psi at one point after replacing the pumps
Meaning they were not wired backwards

Since it was not stated, I was not certain that meant both tanks were reading 10# with the key on and 30# when trying to run or only one tank was getting a fuel pressure reading.

Quote:

Originally Posted by 88f351

I have an 88 f250 with a 351
just got this truck was sitting for 8 years….

checked the fuel pressure at the fuel rail is
10 with key on, and 30 when trying to run. Has got clean fuel at the rail.
why won't it run?

My truck sat for 9-10 years. I found out that the DFR was stuck on the front tank. I discovered that when I ran out of gas on the highway since it would not allow fuel to flow from the rear tank. About 12 years ago I bought a reservoir from the junkyard and it has been fine since then.

Quote:

Originally Posted by 88f351

That will work for now but you are stuck with only one gas tank until you replace the DFR.