High pitched noise on acceleration

Mar 15, 2004 | 12:51 PM

God of Thunder

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High pitched noise on acceleration

OK, I did at least five different searches before posting.

I'm getting a very high pitched noise on accelration (in all gears I believe). If I had to compare it to something I would probably say it sounds like air escaping a balloon. While the pitch is high, the volume is not.

Any ideas?

Mar 15, 2004 | 01:22 PM

MyRxBad

Fb's rock!

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From: Toronto/Oshawa

Where is it coming from?!?

Mar 15, 2004 | 01:26 PM

God of Thunder

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Sorry. That's the hard part. It almost sounds as if it travels a short route underneath the car. Say from the front of the cabin to the back.

Mar 15, 2004 | 01:28 PM

XeRo

Normality is Obscene

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From: AL/GA...you pick

you have an aftermarket amp and sub setup?

Mar 15, 2004 | 01:34 PM

God of Thunder

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No sir. Only "mods" so far are the green air filter, ground kit, and borla cat-back.

The noise has been around since before these were added, however.

Mar 15, 2004 | 01:44 PM

XeRo

Normality is Obscene

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From: AL/GA...you pick

hmmm...there goes my theory...and if you say it was happening before you put the Grounding Kit on then I'm really at a loss...good luck with that one...

Mar 15, 2004 | 03:00 PM

Mr M

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From: Germany

Does the sound change with engine speed, or vehicle speed? Sounds like a vacuum leak to me.

Mar 15, 2004 | 03:40 PM

God of Thunder

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You could say that, it doesn't appear to exist at lower speeds, gets prevalent and then goes away until shifting into a higher gear at which point it would kick in again.

Mar 15, 2004 | 03:47 PM

Gyro

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From: Massachusetts

some old post's to consider....

Here

and

Here

and

Here

I'm not sure if thats what your hearing.......hope it helps

Mar 15, 2004 | 03:58 PM

#10

God of Thunder

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Thank you very much for the effort, unfortunately I don't think any of those are "my" sound.

Do they name these sounds after the discoverers like comets or viruses?

Mar 15, 2004 | 04:11 PM

#11

Gyro

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From: Massachusetts

Also the recall that changes the dynamic damper heat shield addresses a loose or fractured heat shield. This can cause a noise at certain RPM's.

If you havent had the recall work done yet......theres a good chance it could be the faulty heat shield.

Recall

Mar 15, 2004 | 11:30 PM

#12

Kas

- Senior Menber -

Joined: Aug 2003

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From: Melbourne,AU

i've got the exact same noise. open your hood, start the car and play with the throttle revving it fast and slow. you will notice that the intake whistles loudly when it sucks air in. my engine runs real sweet so i've not bothered to look into it any further.

Mar 15, 2004 | 11:33 PM

#13

Mr M

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From: Germany

It would be nice if you could compare to another car just to make sure it 'is' an abnormal noise. Not suggesting you are imagining anything, but it would be nice to rule out the possibility that this is a normal noise.

If it is a vacuum leak, then your only resort is to have someone rev the engine while you search for the source of the noise under the hood. All the intake air valves bar the auxiliary air work on vacuum, and another possibility could be the air line to the oil injectors (not vacuum). A job for the dealer me thinks...

Mar 17, 2004 | 04:38 AM

#14

Charles R. Hill

Owner of BHR

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I have the same sound, I believe. My friends say it sounds like a turbo winding up. I think it might be the e-shaft and rotor gears making that sound. They have straight cut gears/meshing involved. In that case, the noise is normal. I tend to think it is one of the unique qualities of the rotary engine and I sorta like it.

Charles

Mar 17, 2004 | 08:39 AM

#15

God of Thunder

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That's not a bad comparison.

It's not that I can't live with the sound, just don't want to have a problem go unaddressed. I'm all for those quirky little things that make this car the unique.

Mar 17, 2004 | 09:32 AM

#16

Psylence

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From: philly 'burbs

I know the noise your speakin' of, it's a slight whistling noise, right?

Mine does it too. It sounds like it could be gear whine.. it doesn't sound mechanically catastrophic so I'm not concerned.

Mar 17, 2004 | 09:50 AM

#17

God of Thunder

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Bingo, that sounds like it.

Mar 18, 2004 | 08:15 PM

#18

sup3rbad

Numbah 1 in da hood... G

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From: Sylmar/ Los Angeles, CA

I asked about this soungd ages ago on this forum but noone gave me a clear cut answer. I hardly notice it anymore though. It's usually most prevalent when im in sixth gear trying to accelerate on a slight uphill.

Mar 18, 2004 | 11:47 PM

#19

rx-7~rx-8

Junior in High School

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From: Dallas, Texas

HOSE LEAK...

My Parents Jeep is in the SHOP... for the same thing... at higher speeds it seems like a whistling... noise... irritaing as heck... kind of like a ballon escaping air AS YOU MENTIONED..

-Vacumm Hose Leak... Possible from tranmission...

my tranny shifted perfect... but at high speeds it made tht sound... dont worr you have about 10K miles to fix it... if you delay it for a long long time say 20K miles it will not shift...