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underpowered boost pump?

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Old Jul 6, 2005 | 05:20 AM
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Default underpowered boost pump?

got back from driving to vegas. the pump was making some crazy LOUD weeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee noise. let it sit for about an hour or so, and its fine now. i was driving with the A/C on the whole way. had to do a few runs to 100 to pass some peeps.

anyone else get this?
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Old Jul 6, 2005 | 10:46 AM
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Every factory GM fuel pump that I have heard whine like crazy.. Not sure that helps you out though.
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Old Jul 6, 2005 | 05:28 PM
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Originally Posted by Fast360Dak
Every factory GM fuel pump that I have heard whine like crazy.. Not sure that helps you out though.

this isnt the factory one. its the boost pump that comes in the radix kit.
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Old Jul 6, 2005 | 06:28 PM
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Mine did that too on my way home from San Diego this weekend, and my fuel pressure was in the ******* (50 psi at WOT above 5000 RPM). I let it sit for awhile too, and it's been working fine since then. Worries me a little bit...I PM'ed BlownChevy about it, no response yet. I will let you know what he says.
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Old Jul 6, 2005 | 06:30 PM
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Sorry about the lag time in response.....I have been swampped since I got back.

The inline pump does make some noise when it is warm outside. If you feel there is a problem you can send it in and we will test it for you and let you know.

Bryce, yours was used so there is no telling how many miles were on it before you bought it.
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Old Jul 6, 2005 | 06:34 PM
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Originally Posted by BlownChevy
Bryce, yours was used so there is no telling how many miles were on it before you bought it.

true that.

hmm, do you think it is something to worry about?... and where can i grab another one?
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Old Jul 6, 2005 | 09:44 PM
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Originally Posted by onyx
true that.

hmm, do you think it is something to worry about?... and where can i grab another one?

I dont think you have much to worry about....If you need a new one for back up let me know.....We have em.
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Old Jul 7, 2005 | 12:10 AM
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The noise on mine was one thing....but the lack of fuel pressure up top was another. Once it cooled down I had 64psi all the way up the RPM range. When it was hot and screaming though, I only had 50psi above 5000 rpm. Isn't that dangerous because it would make it go lean and detonate?
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Old Jul 7, 2005 | 12:24 AM
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Originally Posted by thunder550
The noise on mine was one thing....but the lack of fuel pressure up top was another. Once it cooled down I had 64psi all the way up the RPM range. When it was hot and screaming though, I only had 50psi above 5000 rpm. Isn't that dangerous because it would make it go lean and detonate?

Could be, contact the dealer you got it from and have it warrantied. Better safe than sorry.
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Old Jul 7, 2005 | 12:28 AM
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Good call. Thanks.
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