Shagg

Steve83

I've never seen a recall on the DFR, and even if there was, the kits probably haven't been produced in decades. If yours is failing, either repair or replace it. The DFR is available new - shop eBay, Amazon, RockAuto, TascaFord...

...or convert the truck to the '90-93 (or '94-96) fuel system by changing the fuel lines & in-tank modules (& connectors).

RLXXI

It was actually recalled twice while I was working at the dealer, I seriously doubt the kits are still available but all it consisted of was two check valves that snapped directly onto each fuel line at each pump and a new fuel pressure regulator. I did hundreds of them and had a surplus of old parts that were still working but left them in a box when I retired from Ford in 2004.

Perhaps you can find some aftermarket fuel line check valves? The ones Ford supplied were steel. No idea why they also included a pressure regulator. If it was my truck I'd just delete the side tank and run exclusively on the rear tank.
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Steve83

You're talking about the '90-93 recall, for FDM systems:


(phone app link)

His '89 has no steel parts in its fuel lines, and its tank pumps are low-pressure. The DFR (which is between the tanks & the hi-pressure pump) leaks internally due to failing O-rings. External check valves (which aren't needed on aftermarket FDM pumps, so the aftermarket doesn't make them) won't help.


(phone app link)

RLXXI

I didn't start working at the dealer until 93. I performed those recalls personally, literally hundreds of them. I'm pretty certain I know what I'm talking about. The steel check valves were attached to the steel line directly on top of the fuel pump/sending unit, the lines were then reconnected to those valves. It covered 87-96 year models. The second time they recalled it was for 90-93 only.

The system your talking about predates those systems as the pumps under the recall were quite capable of hitting 100 psi, happened when the regulator would go bad, otherwise they ran at a normal pressure somewhere in the neighborhood of 30 psi. They eliminated that frame mounted selector valve in the mid 80's.

Was just doing an image search on those check valves on google and actually found them for sale on amazon, holy crap!! Didn't think there were any left over, they don't include a new pressure regulator but it's a good start.


^^ check valves.
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Shagg

RLXXI

The dual function reservoir if I understand you correctly was phased out in 85 or 86, your truck does not have one. That system had low pressure pumps in each tank and a high pressure pump mounted on the driver side frame just after that reservoir. On your truck the dash switch reroutes power to each high pressure pump/sending unit.

EDIT: Found a pic of the actual recall kit with regulator, OP maybe you can find one by searching that part #.


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Shagg

Steve83

Apparently you didn't read the recall in the caption of the pic I posted. It only covered '90-93 gas dual-tank Fs. 3 versions of the recall are in that caption.No, it was used from '87-89 in gas dual-tank F-series, as this shows:


(phone app link)That's one way of doing it, but not what I'd do. I don't think you can buy a selector valve with the correct nipples to mate to the truck's fuel line fittings. So you'd still need to address that in a safe way that wouldn't result in fuel leaks & vehicle fires. But essentially, you'd remove the DFR & replace it with a 6-port selector valve similar to this:


(phone app link)

But the better way to do it would be to remove all the fuel lines, filter, DFR, & pumps, delete/abandon the frame pump wiring, and replace all of it with the fuel lines from '90-93 trucks & new '90-93 in-tank FDMs. Everything would be plug-n-play. But with just a little more effort (splicing on 2 new tank connectors), you could use the '94-96 ('97 heavy) FDMs. Either way: the front fuel line sections (forward of the filter) must come from gas trucks (including Broncos) with the same engine (fuel rail) as yours; the rear sections must come from gas F-series with the same wheelbase as yours.

RLXXI

Apparently my memory isn't as good as it once was.
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