Fuel Pressure fluctuation - Ford Powerstroke Diesel Forum

 
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post #1 of 8 Old 11-07-2012, 03:01 AM Thread Starter
ndh
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Fuel Pressure fluctuation

I noticed today that my fuel pressure is dropping about 10 psi under hard acceleration (runs fine) it normally stays at 60. I did the blue spring upgrade and changed my fuel filters about 6 monhs ago. Any ideas what could be causing this? Time to change filters?

The thing that bothers me is that it just started doing this, normally it would go down about 2 psi, not this huge swing.

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post #2 of 8 Old 11-07-2012, 03:45 AM
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Could be filter, pump or even your spring you just installed.

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post #3 of 8 Old 11-07-2012, 05:36 AM Thread Starter
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Guess i'll try changing my filters this weekend......i reprogrammed it to the factory settings this morning and it reduced the drop to 5psi at wfo

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post #4 of 8 Old 11-07-2012, 08:44 AM
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Not a big deal imo. How many miles on your filters? I prefer to change fuel filters every 10k.

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post #5 of 8 Old 11-07-2012, 11:15 AM
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Quote:
Originally Posted by darsey715 View Post
Not a big deal imo. How many miles on your filters? I prefer to change fuel filters every 10k.

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10, 000 thays wayyy to soon.

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Powermax w/KC billet wheel Warren 175/30%
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post #6 of 8 Old 11-07-2012, 11:19 AM
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In your opinion. I change oil every 10k so it makes it easier to change fuel filters every other time instead of keeping track of mileage just for the filters. The filters are cheap through ptp and im all about maintenance. Jmo.

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post #7 of 8 Old 11-07-2012, 12:11 PM
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Quote:
Originally Posted by darsey715 View Post
In your opinion. I change oil every 10k so it makes it easier to change fuel filters every other time instead of keeping track of mileage just for the filters. The filters are cheap through ptp and im all about maintenance. Jmo.

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I mean your not hurting anything but the intervals are at 15, 000 for fuel. I change my oil every 7, 500 so I just do my fuel filters every other oil change. Bpackstone just told be to exend my oil changes to 9, 000 so I might start doing my fuel filters early like you.

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Studs/BPD58V FICM Atlas40/BPD oil cooler/waterpump/7.3 fan
Edge insight CTS EGT/Turbo timer/FP SCT with ? Tune
Powermax w/KC billet wheel Warren 175/30%
5-8" MBRP Off Road Turbo Back/harpoon
2" Leveling/33' BFGATKO
ELC/PMM Coolant filter
aFe Stage2/EGR Delete


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post #8 of 8 Old 11-07-2012, 12:15 PM
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As long as I have been monitoring fuel psi it has dropped when I am on the hammer. I wouldn't sweat it as long as it doesn't dip into the 40s.

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