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Does your transmission chatter with the A/C on?

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Old Apr 28, 2008, 11:41 AM
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Does your transmission chatter with the A/C on?

Mine chatters with the A/C on. It sounds like something is knocking around in there. It goes away when i press in the clutch, which makes me think its the flywheel. Its more audible when the car is warmed up. It doesn't make any noise without the a/c. It performs fine either way.

Anyone else?
Old Apr 28, 2008, 11:45 AM
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I wouldn't know my evo is currently lacking a tranny
Old Apr 28, 2008, 11:45 AM
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Its probably your clutch that your hearing actually.
Old Apr 28, 2008, 11:48 AM
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Throw-out bearing
Old Apr 28, 2008, 11:55 AM
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Yeah, mine does it too... I press the clutch peddle and it goes away...
Old Apr 28, 2008, 03:19 PM
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ok so what is it? clutch? flywheel? throwoutbearing?

does that mean you guys are experiecing the noise too? or no?
Old Apr 28, 2008, 03:21 PM
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Throw out bearing.

It's normal, and it's really not that loud. Just consider yourself a bit paranoid. Almost every manual transmission vehicle I've owned has had some level of throw out bearing noise.
Old Apr 28, 2008, 03:25 PM
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mine does it a bit too, I solved that by taking the A/C out
Old Apr 28, 2008, 04:12 PM
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Every Evo Ive ever been in
Old Apr 28, 2008, 05:22 PM
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A/C on while idling makes evo sound like crap!
Old Apr 28, 2008, 05:27 PM
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Its completely normal and even more pronounced when you upgrade the clutch and even more pronounced when you have the a/c on. people think that I broke something when I park it with the TT on and I walk into a store. Its nothing to worry about.

Every evo does it
Old Apr 28, 2008, 06:03 PM
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Yeah, when im in the drivethrough..the sound bounces off the wall and its REALLY loud.

I had the same type of noise in my M3 with ltw flywheel. That was because the flywheel was dual mass and the ltw one was not...so it would knock around at idle. Raising the idle made it go away, but thats impossible in a drive by wire system without cracking the ecu. so blah...

Anyways..im glad its normal. And i am paranoid...this is my first evo...a used one at that so i have no idea what a brand new perfect shape evo is like. Just a decent shape used one.
Old Apr 28, 2008, 06:28 PM
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Def the throwout bearing, my 350Z had it too. Sounded like it had a bag of rocks spinning around in the flywheel when I shut it off. Seems like most high performance cars of any sort have a tendency to have a noisy throwout bearings. Oh well its normal and not really a big deal.
Old Apr 28, 2008, 06:33 PM
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throwouts can be loud ^1 yea my boys 350 was loud as **** clattering
Old Apr 28, 2008, 07:26 PM
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Mine does the same thing.


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