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how to tell if fuel pump is going out?

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Old 03-21-2003, 07:38 AM   #1
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Default how to tell if fuel pump is going out?

Does it make any kind of wierd noises or anything if the fuel pump is on its way out?
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Old 03-21-2003, 08:16 AM   #2
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Default Re: how to tell if fuel pump is going out? (PatrickGSR94)

I'm hearing a high pitched whine/hiss from mine, almost like alternator noise (I don't have any interior behind my front seats at the moment). Is this normal or should I be concerned?
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Old 03-21-2003, 09:07 AM   #3
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Default Re: how to tell if fuel pump is going out? (PatrickGSR94)

with no rear seats and a stock exhaust, you can easily hear the fuel pump. Its fine.
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Old 03-21-2003, 10:39 AM   #4
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Default Re: how to tell if fuel pump is going out? (PatrickGSR94)

there's a test you can do. I dont know the specifics for it but basically you take the fuel line and put a cup to it and measure the flow. For n seconds there should be x volume of fuel. If you are less than normal specs (look it up in a manual) then you know your pump isnt performing how it should be.
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Old 03-25-2003, 04:08 AM   #5
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Default Re: how to tell if fuel pump is going out? (tilt)

Quote:
... measure the flow...
You can also measure the pressure - usually that's a test for the FPR, but if the pump can't keep the pressure high enough, you'll see that.
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Old 03-25-2003, 07:27 AM   #6
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Default Re: how to tell if fuel pump is going out? (JimBlake)

well I put my interior back in and I don't hear anything now. I guess it was normal.
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