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Fuel leak

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Old Nov 16, 2019 | 08:01 AM
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Fuel leak

2004 EX, FACTORY FRESH, BP 6.0 ONLY 20K. Found a bunch of fuel all over the front axle. Filled the tank and now the leak slowed down considerably. I'm having trouble locating the source. Any ideas of problem areas I should start with?

 
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Old Nov 16, 2019 | 11:11 AM
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Visual and I'd get on it fast as you're setting up for damage to all your injectors...............also, if by "factory fresh" you mean a Ford-reman-motor, I'd be doubly concerned............Quality isn't Job 1 there anymore.
 
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Old Nov 16, 2019 | 11:26 AM
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Originally Posted by F350 1990
Visual and I'd get on it fast as you're setting up for damage to all your injectors...............also, if by "factory fresh" you mean a Ford-reman-motor, I'd be doubly concerned............Quality isn't Job 1 there anymore.
Is there anyway to CHARGE the lines? Add pressure to find a leak.
 
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Old Nov 16, 2019 | 03:07 PM
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If you have access to IDS you can run the fuel pump to pressure up the system without starting the truck or you can hot wire the fuel pump with some connnections in the passenger side floorboard.
I’d be looking at the fuel line banjos at the front of each head and the upper fuel filter housing fittings.
 
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Old Nov 16, 2019 | 05:27 PM
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Still scratching

Any idea why this thing would be puking all over the front axle one minute then...(.I filled up) ... now I've cleaned up everywhere around the filter and don't see any new fuel. It had the blue spring kit only 20k ago.
 
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Old Nov 16, 2019 | 05:37 PM
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I can only speculate and say it’s probably a fuel fitting needs tightening or one if the fuel bowl o-rings is compromised.
 
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Old Nov 16, 2019 | 07:08 PM
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Put a blue spring upgrade in lately?

Could be a leaky gasket. When I finally did my upgrade, it was becouse that gasket was leaking fuel all down the front of my motor.

 
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Old Nov 16, 2019 | 07:23 PM
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The blue spring kit has 20k on it. I'm sure the guys replaced the gasket.
Just replaced the secondary filter and O ring while I was there. Running the truck, I don't see anything around the filter and fittings, But I'll keep going til I find it.
 
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Old Nov 16, 2019 | 07:32 PM
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Well with my knowledge of my truck. If you have a leak that is showing on your front end. It's eather your fuel lines in and out or a gasket. Other than that you have a breach in your fuel lines between there and your pump.
 
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Old Nov 16, 2019 | 07:44 PM
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Originally Posted by 05XCRSN
Is there anyway to CHARGE the lines? Add pressure to find a leak.
Just turning the key on will run the fuel pump and keep it pressurized for about 20 seconds before it shuts off and the pressure bleeds down.
 
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Old Nov 16, 2019 | 11:11 PM
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Originally Posted by bismic
Just turning the key on will run the fuel pump and keep it pressurized for about 20 seconds before it shuts off and the pressure bleeds down.
Yep. Did that. Still nothing. I'm not crazy. I know there was fuel ALL over the front axle.
 
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Old Nov 17, 2019 | 06:44 AM
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Originally Posted by 05XCRSN
The blue spring kit has 20k on it. I'm sure the guys replaced the gasket.
Just replaced the secondary filter and O ring while I was there. Running the truck, I don't see anything around the filter and fittings, But I'll keep going til I find it.
My bet would be here. Maybe something is a little wonky there or you had some spillage not detected or worked its way.
 
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Old Nov 17, 2019 | 08:57 AM
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Still searching

Originally Posted by TooManyToys.
My bet would be here. Maybe something is a little wonky there or you had some spillage not detected or worked its way.
Nope. I thoroughly cleaned the housing, did a visual inspection BEFORE & AFTER replacing the filter. (key forward & engine running) I thought maybe the cap was loose. Maybe the 0 ring was bad. I did BURP the line before putting the cap back on.
I've read the original gasket around the spring gets dry and cracks. No leaks there or at the fittings.
I know on a vehicle this old that there are inherent issues that show up over the miles. I've never had a leak just stop leaking all on its own. It makes no sense but... the tank was near empty when the leak appeared. The detective work continues.
 
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Old Nov 17, 2019 | 08:58 AM
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Is a crack in the secondary filter housing cap a possibility?
 
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Old Nov 17, 2019 | 09:01 AM
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Originally Posted by Brotherbillstruck
Is a crack in the secondary filter housing cap a possibility?
Thanks but no, Replaced that too. Sounds crazy but I'm going to run the tank down near empty again and see what happens.
I had fuel dripping on the ground and I could smell it while I was driving. By the time I got home ( I filled up) it had stopped. ??
 
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