Listen for a hum from under the middle of the vehicle when you turn the key to the on position. If you hear a 2 to 4 second hum, then the fuel pump is most likely working. If your vehicle has fuel but will not start, replace the fuel filter. If there is no hum, check the fuse first.
Check at the line out of your fuel filter
It does not have a test connector
Fuel Pump fuse, relay, fuel filter, and all connections. A fuel pressure test will verify a defective fuel pump, or if it is simply not running, and has current to it.Fuel Pump fuse, relay, fuel filter, and all connections. A fuel pressure test will verify a defective fuel pump, or if it is simply not running, and has current to it.
Fuel pump pressure test.
Fuel pressure test at the fuel rail.
Fuel Pump Pressure Test Look at the Related links below for help.
A fuel pump pressure test could determine the condition of the fuel pump and fuel system.
Start with a fuel pump pressure test.
Where is the fuel pump fuse and relay on 1994 BMW 525i and how can I test to see why my fuel pump won't work
With a fuel pressure test at the fuel rail.
The 1997 Nissan Pathfinder does not have a schrader valve. If you want to test the fuel pressure system (fuel pump, lines, pressure regulator) you have to insert a 'T' in the fuel line under the hood and connect a fuel pressure gauge to the 'T'.
The fuel test port on a 1997 Suburban is on the engine under the hood. It is located near the fuel lines.