air in fuel lines - Ford Powerstroke Diesel Forum
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post #1 of 5 Old 08-01-2009, 02:05 PM Thread Starter
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air in fuel lines

I have been screwing with the hutch mod(under frame rail, not tank mod yet) I also did the fpr mod. I started this due to cackling. Now after the truck sits for say 20 minutes, I turn the key to on to letpump run, I hear air bleeding off a few seconds. Never used to. Its been grat for about a week.
I am wondering if its sucking the air in inside the tank. I replaced the gaskets on the fpr mod(O ring and the seal for the fuel line) I checked nothing is leaking. The cackling is back. I am going to fill it up after dinner. I am wondering if at 1/2 tank or lower its sucking air? It also could be the fuel filter top? I gotta admit I bought one from autozone with the filter attached to it. Aftermarket cap. Its been on for about 3 weeks. The noise just started.
I cant remember if the first time the cackling started it was at 1/2 tank or
not. anybody else hear a air whistle when the first prime it?
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post #2 of 5 Old 08-01-2009, 02:36 PM
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post #3 of 5 Old 08-01-2009, 05:17 PM Thread Starter
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went and filled up, no difference.
Listened carefully when the wife turned the key to on. Started thinking fuek filter. I removed it the top cap gasket was swelled and too large. remember this is one of those junk ones that comes with the aftermarket cap. I happened to save the original gasket.I used that. While this wasoff I drained the fuel cannister. When i turned keyon(knowing it was empty) I did not hear any screaching air noise. I think it was it. I will replace the filter tomorrow and reinstall the factory cap.
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post #4 of 5 Old 08-02-2009, 07:30 AM
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Glad you saved the factory cap!! WIX has now gone to the all in one cap and filter and I hate it!! Looks like you found your air problem.

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post #5 of 5 Old 08-02-2009, 07:32 AM Thread Starter
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in this case, it was just a junk gasket,totally different shape.
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