I have a 2002 Ranger with a 2.3L DOHC engine. I want to check the fuel pressure, and not sure if or where there is a port for fuel pressure test. If any one can help with this info it would be most appreciated.

 

There is a Schrader valve on the fuel rail. Look for a small, screw-on plastic cap, probably black.

 

I found someyhing with a blue cap at the back of the engine, but have no idea how to access it. I don't see anything on the front of the fuel rail.

 

The original cap on the test port looked like the one on this Jaguar fuel rail. Obviously, the Ranger rail itself is different.

If the cap happens to be missing, the inside of the FP Schrader valve looks similar to a common Schrader tire valve.