Fuel Pressure Question - 1997 Powerstroke - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 3 (permalink) Old 10-07-2011, 02:43 AM Thread Starter
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Fuel Pressure Question - 1997 Powerstroke

97 Powerstroke – The question I have is about fuel pressure. There are two fittings on the left hand side of the fuel filter assembly, one in front and one behind. I wasn’t able to get the gauge on the front one without leaving the injector cable out so I didn’t get a good reading there. I will put an elbow on there tomorrow. I did get a reading on the rear fitting which was ~12 psi at idle and when warmed up would go up to about 18 psi unloaded at wide open throttle. My questions are is this normal pressure for the rear port and what is it measuring on that port.

God bless you all and thanks for any help, Ed
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post #2 of 3 (permalink) Old 10-07-2011, 03:46 AM
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Re: Fuel Pressure Question - 1997 Powerstroke

fuel pressure - PowerStrokeNation
I found some good info in the link I posted in here
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post #3 of 3 (permalink) Old 10-07-2011, 05:12 AM
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Re: Fuel Pressure Question - 1997 Powerstroke

Are both of these on the Fuel Pressure Regulator block (the part bolted to the driver's side of the bowl with the 2 braided hoses going into it on the front portion)? There should be a schraeder valve on the front-most one (this is where the pressure is normally measured). Was there a plug in the other one to the rear portion? It sounds like where there would normally be the Fuel Restriction Sensor (they like to leak, so folks will usually just plug it with a 1/8 NPT plug). Measure it at the schraeder valve. It should be at least 40 psi while cranking and should be around 50-60 psi at idle. Cheers!

97 F250 SC 4x4, E4OD, 4.10 LS, Basically Stock, Relocated Block Heater Plug, Ext Trans Filter, Tru-Cool Max, I/C Mounted but not Plumbed

SOLD: 94 F350 CC DRW PSD, 5 Speed, 4.10 LS, SBC Con-O, Baldwin Filter, Tymar HPX Hose, 3” DP, Bilsteins, $12 AIC, Coolant Filter, Explorer O/H Console, Trans Temp, Boost, and Pyro, Pedestal Mod, Gutted EBPV
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