whistling sound - Subaru WRX Forum
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post #1 of 4 Old 02-04-2014, 06:54 AM Thread Starter
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whistling sound

I just noticed the last couple days that my 2003 WRX has started making a whistling sound.(only way I can think to describe it.) It's not the usual turbo sound. I searched the forums and found some info on throw out bearing but it does the opposite. It gets a little louder as I accelerate but go away completely when I press the clutch in. Any help would be great. Thanks
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post #2 of 4 Old 02-04-2014, 02:42 PM
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Is there any way you could link a video of the whistle sound you are speaking of?
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post #3 of 4 Old 02-04-2014, 05:02 PM
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Maybe just a vacuum leak.
Make sure everything under the hood is on tight and not torn/damaged.

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post #4 of 4 Old 02-04-2014, 05:14 PM
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my bypass valve vacuum line came off by my intake manifold and this is a very loud turbo whistle

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