yes especially if installed in an automobile it may pump but not build pressure.
If the relay is bad, then the fuel pump will not work.
Bad fuel pump?
Check the fuel pump relay and fuse.
injector is bad
If the fuel pump relay switch is bad then the fuel pump will not be turned on. Think of the relay like a light switch. If the switch has a bad connection then the light doesnt work.
bad fuse for fuel pump relay bad fuel pump relay bad electrical connection clogged fuel filter anybody else have any suggestions ?
No, but it could run with a weak fuel pump.
there is not one! if pump does not work it is a fuse, relay, or a bad fuel pump.
If the car is not getting any fuel, it will not run.
Either a bad fuel pump (most likely) or a short in the wiring somewhere. Suggest you disconnect the wiring from the fuel pump, put a new fuse in and see if it still blows. If no blow, bad fuel pump. Still blows, short in the wiring somewhere.
A plugged fuel filter can cause the pump to fail prematurely due to it having to work harder to pump the fuel through.
The best way to see if the fuel pump relay is good or bad is just replacing it with a new one. Be sure and check the fuel pump fuse to make sure it is not blown. Also be sure and replace the fuel filter as it may be clogged. If all this is good and the fuel pump still will not run is more than likely defective. In fact the pump can be running and still not be able to pump fuel.