Whistleing Sound and a ringing sound

[DenverQ]

When I start the car up now it sounds like its ringing and whisteling I lift the hood and it doesnt sound happy I have no clue where the sound is coming from. It seem to go away or atleast quiet down when I have driven the car for a while. Kinda sounds like either bearings or a vacum leak but the car runs pretty smooth. I might just have to take it to the dealer =(

[DenverQ]

Verified with the dealer and the water pump was replaced at 91k, so that shouldnt be the problem as I flush the cooling system every year. COuld the sound be another pully starting to seize up? It really doesnt sound like a air leak but like somehting is rubbing together type of thing

[911/Q45]

The idler pulleys that are used to adjuct the belt tension are probably bad at your mileage. Loosen the belts and check them, they should spin freely and silently.

[greg_atlanta]

When my idler pullies were bad I got a screeching noise at high rpms only. But I replaced before they got too bad.

Rev the engine very high and if the sound is amplified it's probably the pullies. They're about $40 each, might as well replace all three (PS, A/C, Alt.)