Clutch whistle

[Dominasian]

Hello guys and ill need your help figuring out what that whistle is. I have searched forum for some answers but non of those helped me find the answer to that it is.
So, after accelerating (not exceeding 4k RPM) and pushing clutch i hear a high pitch whistle sound, ITS NOT HISSING like what BOV does, its a half second whistle sound. Happens about 30% of the time and only when i push the clutch all the way in. We have done a boost leak test and we found one what is in the boost controller...
Help me out, is this normal ? Is your car doing the same thing when you push the clutch all the way in ?

 

[reallyslowfwd]

are you sure its not the spring in the pedal assembly?

 

[Dominasian]

Assume so, because otherwise it would happen all the time and probably right when you push on the clutch pedal, but it happens when RPM drops, or approximately 1-2 seconds after pushing the clutch all the way in.

 

[92PandaTalonTSI]

First off all I notice you're from Aurora. Hope all is well for friends and family out there for you! I hear a lot of squeeking, whistling problems could be from the throwout bearing. Maybe it's starting to go which is why it only does it at certain points.

 

[Dominasian]

Thank you, everything is alright here now I will do a check on throwout bearing, any other suggestions ? Does it have something to do with a circulated BOV ? like lets say when u boost and BOV opens it makes a hissing sound, but what if it doesn't let all the air out and what ever is left is getting out right after a hissing sound due to a lower pressure in circulation. I don't even know if i made sense.

 

[needbooost]

The bov will make no sounds from any action with your clutch, only to the release of your throttle. If your car is rolling in gear you press only the clutch pedal (repeatedly) and it makes the sound you describe its your throw out bearing. If you decide to take on the job yourself use an OEM tob.