installed in cab fuel pressure gauge and gauge is now showing 76psi, any ideas? - Ford Powerstroke Diesel Forum
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post #1 of 3 Old 07-19-2011, 02:32 PM Thread Starter
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installed in cab fuel pressure gauge and gauge is now showing 76psi, any ideas?

I installed an auto meter electric fuel pressure gauge along with a strictly diesel extended fuel line to go from the test port to keep the sending unit away from major heat and or vibration and then set my airdog pressure to 68psi. For a week the pressure never dropped below 64psi under load or under a heavy foot. Today my low fuel light came on and my psi not only dropped to 50 but the gauge was bouncing around. After I got fuel the gauge now reads a steady 74-76 psi. How much psi is bad and any ideas why its nkw showing 8-10 psi more then when iI installed and set the fuel pressure? We did bleed the air out of lines after we installed and made sure all was working.

RCD 4.5" lift with Airlift system, 4" MBRP turbo back minus KITTY & MUFFLER, AFE Stage II Pro Gaurd 7 intake, SCT X3 with Custom tunes, EDGE CTS for gagues with Pyro Probe, ARP studs, BPD Egr, Updated FORD oil cooler, Diesel Site Coolant Filter, AirDog II, 6.4 Banjo's, Upgraded BLUE fuel pressure spring, autometer in cab fuel pressure gaugs, Mag Hytec rear Diff cover, Full HID Xeon lights with HID Foggs, Recon LED tail and 3rd break lights all on 35X12.5R20's Toyo M/T's, XD Misfit rims.
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post #2 of 3 Old 07-19-2011, 05:37 PM
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i think over 75 is bad.. u should post this in the perfomance section.. i thnk ud get answers there


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CTS
straight.. 5" to a 7" tip
full egr delete.. FCDP
new oil cooler
upgraded fittings for hpop
head gaskets.. frm FCDP
arp studs.. frm FCDP
bully dog off..
sct w custom tunes
coolant flush.. now ec-1
AirDog II.. not so sure about it
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post #3 of 3 Old 07-20-2011, 12:32 AM Thread Starter
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10-4 thanks for the idea.

RCD 4.5" lift with Airlift system, 4" MBRP turbo back minus KITTY & MUFFLER, AFE Stage II Pro Gaurd 7 intake, SCT X3 with Custom tunes, EDGE CTS for gagues with Pyro Probe, ARP studs, BPD Egr, Updated FORD oil cooler, Diesel Site Coolant Filter, AirDog II, 6.4 Banjo's, Upgraded BLUE fuel pressure spring, autometer in cab fuel pressure gaugs, Mag Hytec rear Diff cover, Full HID Xeon lights with HID Foggs, Recon LED tail and 3rd break lights all on 35X12.5R20's Toyo M/T's, XD Misfit rims.
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