My wife just noticed a faint, high-pitched sound coming from her 2004 XC90 2.5T AWD when she starts the vehicle. We've got about 72,500 miles on it. The noise seems to go away after a few minutes of running. Anyone have a similar noise? Any idea what it might be? Thanks.

 

Hi,
Did you get anywhere with this, I have the same problem on a Volvo S40 05

Thanks
Matt

 

high pitched can be a belt squealing when cold. buy some belt dressing at an auto parts store and try spraying it on belt and see if that helps. i think this belt is self adjusting.