first, i need to know if it is electrical or mechanical? if electrical,& in the tank of car, it will just stop working. if it is outside of tank it will not make any noise if it is bad! it should buzz or vibrate (really soft)if it is working correctly. if mechanical, like on old Chevy small blocks it will "clatter" a little before going out.
My gas gauge isn’t marking n started jerking like it’s out of gas
how do i know the fuel pump is going bad in a 1998 ford expedition eddie bauer?
When you are having mechanical problems with your 2003 CTS Cadillac, you will know that your fuel pump is going out.
check the the pump pressure at the rail
The car stops running.
If the fuel pump becomes noisy you can rest assured it is going bad. But, the pump maybe going bad and not make any noise at all. Anytime you have a problem with fuel delivery, first thing to do is replace the fuel filter. After replacing the fuel filter a fuel pressure test will verify the condition of the pump.
Noisy pump, hard starting, stalling.
Hard starting and there is often a hum from the fuel tank prior to failure.
You just don't know until a mechanic tells you.
When a fuel pump is bad the vehicle will not start. A fuel pump that is going bad may cause the vehicle to shut off while going down the road.
Noisy pump, hard starting, stalling.
Trust me, If you have to bang on the fuel tank to make the fuel pump run, Then it is time to put a fuel pump and filter in.
If its hard to start it probably your fuel pump going out .You will know when it out you will go run your batteries dead trying to start it. the pump is in your fuel tank.