To much fuel psi - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 22 (permalink) Old 04-21-2017, 01:55 AM Thread Starter
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To much fuel psi

When i got my truck. It was running 90 pounds of fuel pressure that was running down the road. So my question is were should the fuel pressure be. Thanks for the help.
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post #2 of 22 (permalink) Old 04-21-2017, 02:00 AM
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Re: To much fuel psi

Between 45 and 60 mine runs at 60

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post #3 of 22 (permalink) Old 04-21-2017, 02:27 AM Thread Starter
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Re: To much fuel psi

I have mine set to 65 now. I about sh** when i seen it was 90-100.
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post #4 of 22 (permalink) Old 04-21-2017, 02:24 PM
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Re: To much fuel psi

Haha ya that's a little high u want it closer to 55 psi but u will be ok at 65 u could probably mess with it and see how it runs on different PSI

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post #5 of 22 (permalink) Old 04-21-2017, 03:20 PM Thread Starter
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Re: To much fuel psi

I have to get it back together first.
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post #6 of 22 (permalink) Old 04-22-2017, 12:21 AM
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Re: To much fuel psi

Ford has stated that it should be 45-75 psig. There was an upgrade regulator spring (years ago) that took it to 100 psig. There was a debate about the Ford spec at that time. Some people swore that they operated at 100 psig and had no issues. My preference is to stay within the Ford spec (except I wouldn't want to drop below 50 psig).
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post #7 of 22 (permalink) Old 04-22-2017, 02:38 PM
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Re: To much fuel psi

drop bellow 50 risk damage to injectors, go above 100 risk blowing o-ring on injectors, so in my opinion best to stay on the higher end than lowwer as orings are cheap injectors are not,

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post #8 of 22 (permalink) Old 04-22-2017, 05:11 PM Thread Starter
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Re: To much fuel psi

I finally got it back up and running after my hot no start issues and t/converter issues. The fuel never drops below 60psi.
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post #9 of 22 (permalink) Old 04-22-2017, 05:19 PM Thread Starter
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Re: To much fuel psi

Replace all orings on hpop and still had hot no start after running around for days I finally found that the lpop pump was going out. The clutches were burned up and worped in the t/c got that fixed.
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post #10 of 22 (permalink) Old 04-23-2017, 01:21 AM
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Re: To much fuel psi

Glad you got her fixed they r good trucks when they run right and taken care of

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