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Winey Fuel pump.

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Old Feb 21, 2017 | 10:18 PM
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Default Winey Fuel pump.

My fuel pump is making a high pitch sound. Sort of like an old water faucet. It is not real loud but and annoying pitch.

I read in old post that this is normal for many GM pumps.

Any one have luck suppressing the sound aside from using 200lb of Dynamat? Like just a little around the tank.

How common is this issue? It's a 2002.
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Old Feb 22, 2017 | 01:58 AM
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Noticed it after I entered it. How do you fix a thread title. Whining is what it is doing.
If it was making wine I would be celebrating.

Maybe the moderator can help fix the title.
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Old Feb 22, 2017 | 07:00 AM
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Mine was noisy till I changed my fuel filter. No noise at all now. Mike
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Old Feb 22, 2017 | 07:58 AM
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^Thanks. What year is yours Mike?
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Old Feb 22, 2017 | 08:56 AM
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Originally Posted by Rob 02
My fuel pump is making a high pitch sound. Sort of like an old water faucet. It is not real loud but and annoying pitch.

I read in old post that this is normal for many GM pumps.

Any one have luck suppressing the sound aside from using 200lb of Dynamat? Like just a little around the tank.

How common is this issue? It's a 2002.
The truth is you need to here that wine ,when you can't here it anymore ,them you got problems .. Get some louder mufflers turn up the tunes .. My 04 ,little story after taking both tanks out 2 times ea. yes two times each and them bringing it to the shop $1300.00 later to find out I had a NEW BAD pump Two of them .I love to here the wine in the morning.. The wine is good..
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Old Feb 22, 2017 | 09:08 AM
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I would be rejoicing if the fuel pump was making a wine.
But it's making a whine!
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Old Feb 22, 2017 | 09:46 AM
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Originally Posted by Rob 02
I would be rejoicing if the fuel pump was making a wine.
But it's making a whine!
Can't tell you how common it is, but my 2004 whines too. It seems like it's mostly noticeable when the tank gets below 1/4, so I just try to keep it above that. I ran some Techron through it last year, and I swear it was a little quieter before the next fill up, but that was probably just my imagination. I'm sure most cars make the same noise, but very few have the gas tank right behind the drivers ***, so you never hear it. Even my FI motorcycles have loud pumps, until the engine starts and the exhaust drowns it out.

You're right though, it's not that loud, but it's at just the right frequency to be annoying. I have terrible hearing, and can still hear it. (Damn you tinnitus! )

--Mike
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Old Feb 22, 2017 | 11:27 AM
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Originally Posted by mjfrank
Can't tell you how common it is, but my 2004 whines too. It seems like it's mostly noticeable when the tank gets below 1/4, so I just try to keep it above that. I ran some Techron through it last year, and I swear it was a little quieter before the next fill up, but that was probably just my imagination. I'm sure most cars make the same noise, but very few have the gas tank right behind the drivers ***, so you never hear it. Even my FI motorcycles have loud pumps, until the engine starts and the exhaust drowns it out.

You're right though, it's not that loud, but it's at just the right frequency to be annoying. I have terrible hearing, and can still hear it. (Damn you tinnitus! )

--Mike
Whine in a 2004? I never ever hear my fuel pump make any noise in my 2004 over the 3 years of ownership. Maybe I misunderstood, but I thought the fuel pump whine was an issue in the earlier C5 models, i.e. before 2003.
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Old Feb 22, 2017 | 11:54 AM
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Definitely have it on my 2001. Drives me nuts a night but it does keep tempo with the turn signal.
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Old Feb 22, 2017 | 03:16 PM
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Originally Posted by rrwirsi
Whine in a 2004? I never ever hear my fuel pump make any noise in my 2004 over the 3 years of ownership. Maybe I misunderstood, but I thought the fuel pump whine was an issue in the earlier C5 models, i.e. before 2003.
I don't here my pump in my 04 either but I can here my buddy's pump in his 98 ???
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Old Feb 22, 2017 | 03:23 PM
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Change the filter could be stopped up a little that will make the pump work harder and wine more trying to pump gas through the filter.. and the pump over time will burn out and bam no wine and no pump or might be going bad .Need to check pressure may be going south .. One of the first sings of going bad is getting a little loud.. After you change the filter and check pressure and al is good ,just drive it ..
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Old Feb 22, 2017 | 03:30 PM
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Is it just me or is the spelling on this thread really bad.
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Old Feb 22, 2017 | 03:34 PM
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Originally Posted by Road Runner
Is it just me or is the spelling on this thread really bad.
I have been working on Corvettes for 50 years just trying to help with a pump deal , if you want good grammar maybe you should ask a school teacher to help fix a Corvette .. just SAYING..
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Old Feb 22, 2017 | 04:10 PM
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Originally Posted by Road Runner
Is it just me or is the spelling on this thread really bad.
I diddn't notise enny spelleng issuses, but knot a winer.

Last edited by Choreo; Feb 22, 2017 at 04:11 PM.
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Old Feb 22, 2017 | 04:29 PM
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Originally Posted by Choreo
I diddn't notise enny spelleng issuses, but knot a winer.
Knott mie neithier
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Old Feb 22, 2017 | 07:10 PM
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Originally Posted by Rob 02
^Thanks. What year is yours Mike?
My car is a 2000 model year. My filter was actually quite plugged up. Mike
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Old Feb 22, 2017 | 08:37 PM
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Originally Posted by Road Runner
Is it just me or is the spelling on this thread really bad.
I think people are mocking the way I butchered the title. It's cork sniffery.

The content is appreciated though.

I will change the filter next time I get it up on jack-stands. That should be soon. I might try a little Dynamat behind the seat.

Last edited by Rob 02; Feb 22, 2017 at 08:44 PM.
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Old Feb 22, 2017 | 11:28 PM
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Originally Posted by mike48750
Mine was noisy till I changed my fuel filter. No noise at all now. Mike
Just ordered an AC Delco GF882 filter/regulator.
Is that what you used?
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Old Feb 23, 2017 | 01:11 AM
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Originally Posted by Road Runner
Is it just me or is the spelling on this thread really bad.
Not as bad as those Ford sites.
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Old May 24, 2018 | 11:08 PM
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As the C5 ages, there are bound to be more spelling mistakes

Last edited by nuts105; May 24, 2018 at 11:08 PM.
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