i parked my car the 0ther day and it was in neutral with the e brake on ( yes i have a 5 spd ) and there was a high pitched sound coming from the front of my car and when i revved it it went away only to return at the idle anyone have any ideas ?
thanks

 

May it be a V1 or V2 Supercharger?

 

probably a loose pwr steering or AC belt that's slipping a bit

 

Yep definately sound like a loose/worn out belt. Go to a mechanic or preferably nissan dealer to have it checked out.

 

My car has been doing the same thing except that it is more when the cooling fan is about to come on till it shuts off. It does it like clockwork.
Approx 10 sec before the fan comes on you can hear the noise "comming on" Then it gets to its full loudness and continues till the fans go off.

If you rev the engine it will go away while the rpm's are up and start again when it returns to idle.

My car has 73k on it with the orig belts. Im leaning towards that but the sound is not a belt squeel it is more of a high pitched whistle like a vacuum leak. I cannot pinpoint where it is coming from.
Its driving me nutz..........

My car is a 96 GLE btw........

 

BTT