The correct fuel pressure for a 1995 Ford Explorer's fuel system will vary depending on engine type (4.0L OHV or 5.0L V8) and whether the engine is running or not. You'll need to consult your vehicle's repair manual or a reliable online resource specific to your 1995 Explorer's engine to find the correct specifications. These specifications typically give a range of pressure, such as "35-45 PSI" (pounds per square inch) at a certain engine speed and conditions.
Trying to measure the pump pressure directly at the pump itself is not practical or recommended; measuring the fuel rail pressure (after the regulator) is the proper method for diagnosing fuel pressure issues. Incorrect fuel pressure can lead to poor engine performance, so if you suspect a problem, professional diagnostics are recommended.
