Fuel Leak in the valley came back on my 95 Urg - Ford Powerstroke Diesel Forum
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Old 05-05-2007, 02:55 PM
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Fuel Leak in the valley came back on my 95 Urg

Ok so today i noticed when backing up into a parkin spot there were a few drips on the ground which sure looked like they were coming from my truck. When it was parked there was that darn little puddle on the passengers side underneath.
I looked in the valley and it was wet in the back again . There was a little puddle right under the banjo bolt. Then it leads back to the drain hole in the back. When i had the gf shut it off i was under the hood and could hear the pressure coming out from wherever the leak is. The cover was on the engine so i couldn't see the pump. I got back to the garage and pulled the cover off and started it up and do you think it would leak? nope not a drop. Got underneath and nothing. Let it run and revved it up nothing. Went for a drive for 10 minutes and stopped 3 times still dry.
Parked it on a grade so it could really leak out and nothing.

I replaced the pump and lines 1 month ago along with the 2 seals on the banjo bolt. Checked the lines no leak coming from there. Could it be dripping into the valley from the fuel line on the drivers side head? Looks like the passengers side head the line goes in right on the back side of the head. The drivers side looks like its more on the top of the head.

I'm still amazed that it went away.

Any ideas?

Last edited by 95PDXLT; 05-05-2007 at 03:00 PM.
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Old 05-05-2007, 03:45 PM
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When i replaced my pump, I also had a leak show up later. It was on the fitting that sends fuel to the heads at the rear of the engine. The other end of the lines comming from the Banjo fitting. I had to replace the orings in those fittings. I guess I distorted them while working on the pump. They are pain to change. One tip is to put something around the line to keep the nut from slidding down the line. Take it from first hand experence its hard to fish the nut back up if it slips down.

Jim
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Old 05-05-2007, 04:54 PM
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It was the o rings going into the heads that you changed? Is there just 1 on each fitting?

Its weird i drove another 30 miles since i posted the thread and its still not dripping onto the ground. The valley is almost all dryed up. When i saw it leaking
i heard the air seeping out from somewhere when it shut off. Almost like air coming out of a tire with some liquid.

I don't get it.
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Old 05-05-2007, 06:28 PM
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yes there is an o ring (looks more like a short section of rubber tubing) under the nut on each fitting. That line has fuel Pressure on it and is real noticalble when leaking. Mine actually sprayed fuel from around the nut. So I would check real close before changing them.

Jim
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Old 05-06-2007, 07:35 AM
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The leak came back this am when i started it up. Let it idle for 5-10 mins and looked underneath to find it dripping on the passengers side. Glad i left the engine cover off yesterday. There is no leak from the pump,lines. Nothing from the fittings on the head. It looks like its seeping out between the filter lid and the housing(the top of the filter cover was moist too). Its tight, and i don't understand why it would only do it now and again?

Would the filter be clogging up? does the o ring seal come with a new filter from the parts store?

Oh and it did the psshhh sound of pressure leaking out when i shut it off again. I got close to the housing expecting the noise to come from there. It came from the canister on the passengers side firewall. Is this the vacum pump or the a/c condensor? Its black. When it does not leak this noise does not occur when the engine is shut off.


Thanks

Last edited by 95PDXLT; 05-06-2007 at 10:02 AM.
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Old 05-06-2007, 10:12 AM
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I know the Motorcraft filters come with a new oring for the filter lid. I don't know about other brands because i never buy them, but I'll bet they do also.
As for the tank on the passenger side I think you are talking aboout the Airconditioner Accumulator/Dryer. You can here pressure equalizing in it when you shut off the engine if the AC has been on. it will also sweat sometimes. Glad you located the leak.

Jim
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Old 05-06-2007, 10:20 AM
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Quote:
Originally Posted by gbear View Post
I know the Motorcraft filters come with a new oring for the filter lid. I don't know about other brands because i never buy them, but I'll bet they do also.
As for the tank on the passenger side I think you are talking aboout the Airconditioner Accumulator/Dryer. You can here pressure equalizing in it when you shut off the engine if the AC has been on. it will also sweat sometimes. Glad you located the leak.

Jim
Thanks for all the help Man. Are the filter caps prone to crack/leak or is it usually just the o ring?

I don't understand why it doesn't leak all the time. Shouldn't the filter housing always have the same amount of fuel?

I noticed that when its running you can see the center of the plastic top going up and down like there is suction sucking it down some then going back up. Is this normal?

Last edited by 95PDXLT; 05-06-2007 at 04:46 PM.
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