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Old May 9, 2020 | 11:06 AM
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Fuel pressure

What does a fuel pressure gauge tell me??
If I buy one, what pressure range do I need?
Where does it hook into?


2000 7.3 P/S
 
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Old May 9, 2020 | 11:12 AM
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It tells you what your fuel pressure is.
You want a gauge that has a full scale deflection of 100psi. It is recommended that you get an electronic gauge as opposed to a mechanical gauge if you plan to have the gauge inside the cab.
The recommended port to connect to is the post-filter port on the fuel bowl. It is the lower right Fuel Plug in this image.
Assuming your pressure sensor has 1/8 NPT threads, you will need this adapter: Ford 7.3L Diesel Powerstroke Fuel Pressure Adapter straight superduty
Amazon Amazon
 
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Old May 9, 2020 | 01:03 PM
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Thanx, great info and link.

Why do I need to know fuel pressure?? Guessing it will tell me when my lift pump has failed - anything else it is useful for??
 
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Old May 9, 2020 | 01:34 PM
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In addition to telling you about your pump as you correctly said, when the sensor is mounted post-filter it can tell you of your filter is plugged. If/When you have larger injectors it will tell you if your fuel system is keeping up with demand.
 
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Old May 10, 2020 | 10:19 AM
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OK. What will it normally read? (with a clean filter)

Standard injectors now. Might go 1 size up during a rebuild in 40K miles or so.
 
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Old May 10, 2020 | 10:29 AM
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With a totally stock fuel system it will be between 45-65psi.
 
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Old May 10, 2020 | 11:22 PM
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Anyone got the gauges on the fuel bowl to work in a long term situation? I got those from several places but all have failed within a year.
 
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Old May 11, 2020 | 04:34 AM
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My Autometer fuel pressure gauge has been on there since March of 2018 and it still works.
 
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