Open the fuel filler door and remove the gas cap. Listen at the fuel filler opening while a helper turns the ignition on but does not start the engine. The pump will run for a few seconds and then shut off. If you do not hear the pump check the fuel pump fuse and the fuel pump relay. If they are good then the pump is more than likely defective. If you hear the pump then you know it is running but that does not mean it is pumping fuel. A fuel pressure test will verify the condition of the pump. Be sure and replace the fuel filter.
check fuel pump fuse..
check for voltage back where the hot wire connects to the fuel pump. also check groundwire off fuel pump. check fuel pump fuse / check fuel pump relay.
Do a fuel pressure check-no fuel pressure means defective fuel pump-
Check to make sure that the pump is getting power to the Neon fuel pump. Check the pump relay, and the pump fuses.
Disconnect fuel line from pump and start car...if it spits gas out, its working,if no fuel spits out, chances are fuel pump is not pumping fuel.
Not sure what is wrong with your car but if your fuel pump is not working check your fuse for your fuel pump. check your fuel pump relay on your firewall. low or no fuel presser change your filter.
One way you can check to see if the fuel pump is working is to disconnect the fuel line heading into the injector or the carburetor. Be sure there is nothing that can ignite a flame anywhere near you or the vehicle when doing this, and be sure to be outside in a well ventilated area. Have a friend turn the car over for a snap second. If fuel comes out of the line, the pump is working. If not, the pump needs to be replaced. Be sure to check the entire fuel system out first as you may have a clogged line or clogged fuel filter and the fuel pump is working.
how do you tell if your fuel pump is working
Mounted on top and inside the fuel tank.
Fuel pump not working / replace pump Also need to check fuel pump fuse and relay before replaceing the pump. It would help to know the year and engine size and what you are working on.
first check to see if fuel filter is clogged.if you have an electric fuel pump, check the fuel pump fuse. next check the fuel lift pump. then check the injector pump
If your Chevy trailblazer 2004 gauges are not working, check your fuel pump.