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engine noise changes when the clutch is out

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Old Dec 22, 2007 | 04:57 PM
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Default engine noise changes when the clutch is out

Hi everyone!

I'm a new s2000 owner and as such I have a lot of questions about the car. I've tried to use the search button as much as possible, but this is one that I was hoping to get a definitive answer on.

When the clutch is not depressed the engine has a higher pitched sound than when the clutch is actually depressed. The car sounds smoother actually when the clutch is pushed in. I've had many manual cars but have never experienced this drastic a sound difference between having the clutch in and the clutch out. Is this normal for our cars?

I have an 2002 with 40k miles on it.

The clutch doesn't seem to slip and shifts are quite smooth, there are sometimes clinks or clanks when i switch into 2nd or 3rd gear but it's not an actual grind. I've been told these noises while shifting are normal.

Any help/advice would be fantastic, thank you!
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Old Dec 22, 2007 | 08:41 PM
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^definitely, I hear a lot more mechanical noise in the S than any cars I've driven. It bothered me at first but now I realize its just the nature of the car. As for your clutch anomaly, I haven't noticed that drastic of a difference with my clutch depressed. Is your car warmed up when you noticed this?
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Old Dec 22, 2007 | 09:49 PM
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Originally Posted by Choungsgay,Dec 22 2007, 09:41 PM
^definitely, I hear a lot more mechanical noise in the S than any cars I've driven. It bothered me at first but now I realize its just the nature of the car. As for your clutch anomaly, I haven't noticed that drastic of a difference with my clutch depressed. Is your car warmed up when you noticed this?
Yes it sure is, after more than 45 minutes of driving. It's as if when the clutch is not pressed in there is a higher whir and when the clutch is depressed there is no abnormality.
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Old Dec 22, 2007 | 10:19 PM
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mmm, can't say I've ever experienced that. My truck used to do idle higher when I had the clutch depressed and go back to normal when I let the clutch out. Yours sounds like the exact opposite though.
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Old Dec 23, 2007 | 07:45 AM
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Originally Posted by Choungsgay,Dec 22 2007, 11:19 PM
mmm, can't say I've ever experienced that. My truck used to do idle higher when I had the clutch depressed and go back to normal when I let the clutch out. Yours sounds like the exact opposite though.
well when the clutch is out any any car there is more friction in the mechanism i.e. the bearings the plates etc ... and i wonder if this is what i'm hearing? when you depress the clutch they disengage from each other and there is less friction in the system? this is the only explanation i've come across - i'm feeling a bit more worried now that it doesn't seem normal for the car!

Thanks for your posts btw, really appreciate your help .
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Old Dec 23, 2007 | 08:25 AM
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[QUOTE=bobkat,Dec 22 2007, 05:57 PM] When the clutch is not depressed the engine has a higher pitched sound than when the clutch is actually depressed.
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Old Dec 23, 2007 | 09:58 AM
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Originally Posted by ndk4,Dec 23 2007, 10:30 AM
i know exactly what you're talking about. usually the sound is more noticible when the car's parked. everything sounds normal, until you depressed the clutch pedal, then thing's gets quieter. once you let go of the clutch, you start hearing that... its hard to explain, to me it sounds like engaged set of gears working together. sounds familiar? its your clutch working.
thanks for the reassurance. I figured as much, but just wanted to be sure. as for J'sS2K thanks for the advice, explanation, and the flame!!! WOOT! Thanks again for your help guys.
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Old Dec 23, 2007 | 10:35 AM
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Originally Posted by bobkat,Dec 23 2007, 10:58 AM
as for J'sS2K thanks for the advice, explanation, and the flame!!! WOOT! Thanks again for your help guys.
I wasn't flaming you I see what you meant now. You were talking about the car in neutral. I noticed that too. It's weird.

Jason
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Old Dec 23, 2007 | 10:59 AM
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Originally Posted by J'sS2K,Dec 23 2007, 11:35 AM
I wasn't flaming you I see what you meant now. You were talking about the car in neutral. I noticed that too. It's weird.

Jason
hehe yea, i'm just glad that everyone seems to notice it. Like i said i'm a total n00b so i have a lot of crazy questions.
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Old Dec 23, 2007 | 07:05 PM
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Originally Posted by ndk4,Dec 23 2007, 10:30 AM
...everything sounds normal, until you depressed the clutch pedal, then thing's gets quieter. once you let go of the clutch, you start hearing that... its hard to explain, to me it sounds like engaged set of gears working together....
gear hum.

I used to worry about the same thing. Glad to see I wasnt/am not alone.
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