fuel pressure gauge installation

[mikkelstuff]

I would like to install a fuel pressure gauge in my 2002 4WD Ranger 3.0L where I can easily read it. I have had injection fuel pumps fail in other vehicles and, if there is a no start, I want to easily check fuel, spark, and air.

I assume running pressurized fuel into the cab is a safety no no. So I'm thinking I can install a gauge in the engine compartment adjacent to the fuse/relay box in the rear left side corner. It is easy enough to cut the 5/16" steel fuel line under the left side of the body, install a compression T, and run a line up over the outer edge of the wheel well to the gauge.

My question is, must I route 5/16" steel tubing from the T up to the gauge or can I use the approved high pressure injection fuel line hose? This should not run near the left side engine exhaust and hose would be a good deal simpler to run than steel tubing.

 

[Uncle Gump]

why not something like this?

Fuel Rail Pressure Gauge Kit with Ford Service Port Schrader Valve Adapter | Analog | PF2025 | System-S | psi | United States

Each EFI Fuel Rail Pressure Gauge Kit contains a unique adapter fitting which simply screws onto the vehicles fuel system service port Schrader valve on the fuel rail or fuel line, depending on the application.

www.ebay.com

 

[RonD]

I would look for a fuel pressure transducer and install it away from any exhaust pipes maybe under vehicle by fuel filter
Then an electric pressure gauge in the cab

 

[mikkelstuff]

Great but can the fuel rail pressure gauge be left in place?

 

[silverslug]

This is the setup I use to monitor my fuel systems marginal performance. Its on the fuel rail in place of the Schrader valve.

 

[mikkelstuff]

Even better if, like me, you already have a fuel pressure gauge:

Fuel Rail Pressure Gauge Adapter Kit to Ford Service Port Schrader Valve Adapter | eBay

Each EFI Fuel Rail Pressure Gauge Adaptor Kit contains a unique adapter fitting which simply screws onto the vehicles fuel system service port Schrader valve on the fuel rail or fuel line, depending on the application.

www.ebay.com

Don't buy this one. Would not function with my '02 3.0L. Would not open the Schrader valve.

 

[rustybutterknife]

This is the setup I use to monitor my fuel systems marginal performance. Its on the fuel rail in place of the Schrader valve.
View attachment 67107

when the service port is removed is it female 1/8" NPT?

 

[mr_manny]

I installed a fuel-rail schrader valve adapter w/a mechanical gauge to verify fuel pressure. Works good, and super easy install.

I'm thinking of attaching a sending unit, so I can read fuel pressure from inside the cab.
Just concerned about long-term risks of having an adapter permanently attached to the fuel-rail test port.

I feel the risks are low.
I'm just trying to get comfortable having a fuel sending unit on top of the motor

 

[Brain75]

You can also get a fuel isolator (probably not the right name) it is a diaphramed disc that you run a fuel line on one side and a coolant filled line (any fluid will do, but coolant wont freeze in winter) and then run that to your gauge in dash. I did that on my '48. I got it from summit, it is more of a racing product since race car drivers want that on the dash.

They are pricey for just a diaphram in an anodized alu housing and a bracket:

Fuel Pressure Isolators - Free Shipping on Orders Over $109 at Summit Racing

Find Fuel Pressure Isolators and get Free Shipping on Orders Over $109 at Summit Racing!

www.summitracing.com