How do I know if it is my fuel pump is bad when my gas needle is not working?

Question:
I have been driving for the past month and my car has stopped on me. My car has given me trouble starting. My needle for my gas will sometimes move around on me not letting me know how much gas i have in my car. When i put gas in my car, my needle does not show that i have full tank.

Answers:

i have a 91 audi 200 turbo the idle keeps bogging down that sometimes it dies what could be causeing this??

depends on the year and make some fuel pumps and sending units are all in one unit on the top of the gas tank. You can buy them seperatley but the are assembled together. So you could need a sending unit and fuel pump.

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Usually if a fuel pump goes out, the car just will not run. Its not an intermittent thing. If the pump is in the gas tank, you can hear it running when the ignition is on. It may be more a problem with injectors, a hole in the fuel line, clogged fuel filter.........the possibilities are endless.

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the reason for your needle acting up is your fuel reguator, it is found at the top of most fuel tanks. about 90 bucks if you replace it yourself, but it can be a pain in the neck to do. your fuel pump is probably going out. it has nothing to do with the needle so you need to get that checked out. but before i change the fuel pump i would change the fuel filter its only about 10 bucks if you do it yourself. if it doesnt run better after you change the filter your next step is the pump

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You can tell when yor fuel needle starts to not work and when u turn your car/truck on and hear a high pitch noise b4 you start it coming from the fuel pump

Alternator belt, and power steering belt?

If you listen carefully,You should be able to hear a faint winding noise when you turn on iginition. Maybe even a clicking noise. Good Luck
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