7 3 Fuel Pump Pressure Test

Fuel pump is working but trucks not starting well heres a quick and easy way to see if your sucking air in your fuel tank instead of diesel the 7 3 power.

7 3 fuel pump pressure test. Measure the fuel pump s pressure to ensure that the fuel pump is the problem. Do a pressure and flow test of the fuel pump at the schrader valve on the filter header fss fuel shutoff solenoid disconnected on ip. If i need to check the fuel pressure on a super duty i use an adapter on the quick connectors on the fuel line. I am looking to test fuel pressure on my 7 3 i do not have a gauge and i m not looking to spend a lot on a gauge will this work to test my fuel pressure on the fuel bowl.

Locate your fuel pump test point which is usually near the fuel injectors and locate the point at which the pump hooks up with the filter injector rail. Then do a fuel quantity test same place should see 1 3 pint in 10 seconds of starter engine cranking route fuel to a suitable container. The basic ford specification for fuel pressure is 45 65 psi. Fuel delivery pressure is critical for 1999 2003 ford powerstrokes with 7 3l engines for making power and operating efficiently.

Remove the tire valve core and hook a hose and pressure guage on it should see 4 6 psi when starter cranking engine over. The super duty 7 3 trucks have test ports but no schrader valve unless you pull the test port plugs and add your own. Different gauges may have slightly different instructions and the location of the fuel pump varies. There should be a separation joint or a test port where the pressure gauge attaches.

Unfortunately many trucks suffer from low or inconsistent fuel pressure which can cause a loss of power egt issues and excessive smoke. I m not a super experienced diesel guy so i m not claiming that this is the best way to check fuel pressure but it worked for me so i thought i would share it. 7 3 fuel pressure test showing fluctuations. Its not what you can buy its what you can build and.

New 2020 ford f250 7 3l gas v8 and diesel dually. I have a 1999 7 3 powerstroke f250. If there is inadequate fuel pump pressure the engine may not start or will work at a lowered output than normal. Attach your pressure gauge to the pressure test fitting on your vehicle.

Hook the pressure gauge to the fuel pump test fitting. I didn t want to cut into my fuel system so i connected a hose the blue hose in the pictures. The placement of the test. A couple of issues.

Most fuel systems require 30 to 80 psi to run properly.