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Ghosty/vacuumy sound past 3k RPM

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Old Jul 21, 2010 | 01:56 AM
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Ghosty/vacuumy sound past 3k RPM

I don't know if this sound has been there all along, but i'm hearing this ghosty/spooky/vacuumy sound when I get up past 3K RPM. Not really sure how else to describe it. It could be related to the intakes with how it sounds, but I tried out my dad's 08 5AT and the sound wasn't there. My car is an 08 6MT.

Dealer will prob. say it's normal. Just seeing if anyone has noticed this in theirs.
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Old Jul 21, 2010 | 09:16 AM
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From: montreal canada
hey mines does that too its very hard to nottice tho right??? i figured it was normal cose like u say the dealer will probly say its normal they wont nottice the sound
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Old Jul 21, 2010 | 10:07 AM
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Most obvious with the windows rolled up.
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Old Jul 21, 2010 | 10:51 AM
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it sound like its coming from ashtray area but il like it and my transmission has 400miles on it so its NEW maybe has to do with air filter i got new ones not from nissan ???
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Old Jul 21, 2010 | 12:51 PM
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I get this sound too, '08 MT as well. Sounds to me like an electrical humm, like feedback from a ground loop. I notice it most cruising btwn 70-80 in 6th gear (~3k rpm). I asked the dealer about it but they said they couldnt replicate it. There is a TSB is for a similar but separate issue.
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Old Jul 21, 2010 | 12:51 PM
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Originally Posted by franky2222
it sound like its coming from ashtray area but il like it and my transmission has 400miles on it so its NEW maybe has to do with air filter i got new ones not from nissan ???
Got new filters, didnt make a difference.
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Old Jul 21, 2010 | 04:56 PM
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Is your A/C on when this happens?
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Old Jul 21, 2010 | 04:57 PM
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Nope, no AC
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Old Jul 21, 2010 | 05:53 PM
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Do you hear it when accelerating from 1st to 2nd and so forth? I tend to shift around 3-3.5k
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Old Jul 21, 2010 | 07:20 PM
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From: montreal canada
a/c off..i think i hear it in lower gears mostly but i have to test more,, YOU CANT hear it with a/c on
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Old Jul 22, 2010 | 07:00 PM
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any other 6mts hearing this. is this normal ??????????
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Old Jul 23, 2010 | 01:47 PM
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From: USA
Wrap Up: 2009 Nissan 370Z Touring - Article - RoadandTrack.com

For experimental purposes, we measured interior noise both before and after a switch to conventional oil. We found there was a noticeable gain of about six decibels at middle revs in 1st gear but no real discernible difference in maximum cabin loudness. Sans sound meter, some complained about the increase of whirring sounds at low rpm over time, which are reminiscent of radio speaker feedback from an improperly grounded audio system.
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Old Jul 23, 2010 | 06:41 PM
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From: montreal canada
why would it to it when radio is off??? this is not the same thing as the ghostly vacuum sound
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Old Jul 23, 2010 | 10:38 PM
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Think you may have misread it. Nothing to do with the radio, but the sound is reminiscent to what they experienced.
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Old Jul 24, 2010 | 10:40 AM
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From: montreal canada
Originally Posted by cruzmisl
Think you may have misread it. Nothing to do with the radio, but the sound is reminiscent to what they experienced.
I just want to no if this is NORMAL so i can move on
for my 30k maintenance i will try to let a tech here it but thats a long shot
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