Engine All of the Sudden won’t Start Opinions? UPDATE

rpeters549 said:

If it ran great and just suddenly won't start, have you checked fuses/relays? Power going to the pump?

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Smafugula said:

Where is the fuel pump relay for the in line? I saw there was some 10 amp fuse under the steering wheel for something fuel related. It wasn’t blown.

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packagerjr said:

Air hissing makes me think the fuel level is too low or something is amiss with your in-tank pump. Does it continually pump air out the Schrader valve when the pump is energized?

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Smafugula said:

I suspect it as a fuel issue so far as when I put my fuel pressure test kit on and didn’t get any fuel spraying out on the Schrader valve either while connecting or disconnecting. Just air hissing.

1986 5.0l 302 original unmolested

I am not a mechanic. And am just speculating but I think it maybe the sendingunit assembly. My fuel gauge works and I can hear the in line fuel pump trying to do something,

my next order of business is im gunna replace the canister fuel filter which is in unknown status. That thing is a ****. Any tips on how to loosen it without taking the whole assembly out?

Truck has the original fuel pump and I suspect OG one in the tank. The filter between in line pump and engine was replaced by me when I first got the truck

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Fuel Filter Canister - O-Ring Installation and Filter...

Early versions of Bronco Fuel Injection has a canister that holds the fuel filter. I believe this to be any years that had 2 fuel pumps. A low pressure in the tank and a high pressure pump on the rails. This filter is tucked up under the Transfercase skid plate and is a PITA all around to...

www.fullsizebronco.com

sackman9975 said:

Luckily for you, I did a write up on the canister.

Fuel Filter Canister - O-Ring Installation and Filter...

Early versions of Bronco Fuel Injection has a canister that holds the fuel filter. I believe this to be any years that had 2 fuel pumps. A low pressure in the tank and a high pressure pump on the rails. This filter is tucked up under the Transfercase skid plate and is a PITA all around to...

www.fullsizebronco.com

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Smafugula said:

Is it next to impossible to unscrew it while it’s still on the truck?

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sackman9975 said:

I have done this with the canister in the truck about 30 years ago. I can tell you, taking two bolts out and some fuel lines made this much easier to do than working around the transfer case shield to get the seal to seat properly.

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TXtriple said:

Yummy! That's the insides of your tank slowly escaping through the fuel line.

FWIW...I bought a new tank with pump and strainer installed from Rock Auto trying to avoid your issue. Pump crapped out in three months. Apparently they used the absolute cheapest piece of Chinese garbage they could find.

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GetBent4x4 said:

Shouldn't need a new fuel tank that is just 40 years of dirt in the filter housing. You can run fuel injection hose with clamps to replace that line or dorman sells a repair kit to replace the fuel lines. Cap off the fuel tank and pressure wash it off. New fuel sending unit assembly with oring and retainer ring. The fuel sending unit should come with both of those.

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GetBent4x4 said:

Shouldn't need a new fuel tank that is just 40 years of dirt in the filter housing. You can run fuel injection hose with clamps to replace that line or dorman sells a repair kit to replace the fuel lines. Cap off the fuel tank and pressure wash it off. New fuel sending unit assembly with oring and retainer ring. The fuel sending unit should come with both of those.

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Smafugula said:

also are these tanks suppose to have straps? Mine didn't

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GetBent4x4 said:

No thats only f-series and some early 80s/late 70s ones. Check out rockauto.com thats what most of us order from or look up parts availability on.

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