Fuel Pump headed South?? - Ford Powerstroke Diesel Forum
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post #1 of 6 Old 04-09-2012, 07:33 AM Thread Starter
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Question Fuel Pump headed South??

Just got done installing my EDGE CTS fuel pressure monitor. I am concerned about the readings. At idle I am in 40-50 psi range. I have read you never want to go below 45 for any period of time. My concern also is that I have the blue spring upgrade. (Don't know what my pressure was at the time I installed the upgrade). I was expecting to see 65-70 psi. What reading are most folks getting with the blue spring upgrade?? Many thanks.

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post #2 of 6 Old 04-09-2012, 07:35 AM
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post #3 of 6 Old 04-09-2012, 09:46 AM
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I had a similar issue when I installed my Edge EAS fuel pressure gauge. I had the blue spring upgrade and at idle I was reading 60 or so psi but it would drop down into the 20s or 30s at WOT. I ended up replacing the HFCM and now at idle I read 70 psi and it drops to around 63 at WOT.

45 sounds pretty low especially with the blue spring.

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post #4 of 6 Old 04-09-2012, 01:20 PM
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I agree! it sounds like your fuel pump. I ran my old 185s with just a RR and stock pump. My Regulator raises fuel pressure as boost increases, and the stock pump would push as high as 75 psi at WOT. So if you have the blue spring, but are still seeing 45psi with stock injectors I would guess your pump is going.

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post #5 of 6 Old 04-09-2012, 04:21 PM
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hate to jump in but with a stock pump and injectors im at 50-52 at wot and 64-65 at idle, is this getting to low or am i safe?

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post #6 of 6 Old 04-09-2012, 06:33 PM
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Where is the best place to get a new HFCM for a reasonable price

2003 centennial edition f250 4x4 ccsb auto w/blackwater long block w/arp's, 4" exhaust, airaid intake, ODawg's manifold, itp's reg return, sap modified solenoid, DC power 185amp alt, motorcraft 850cca, Warn Hubs, RS 55w 6k hid's, harley headlights, bpd 58v 6 phase, bpd water pump, dieselsite coolant filter, elc coolant, php gryphon, Xcal2 w/unlimited tow, new hfcm, glowshift fuel psi gauge, icon level kit, 20" kmc hoss, 305/55 terra grapplers TOTALED
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fuel monitor , fuel pressure , fuel pump

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