Raullopy

So I go out and start the car this morning, its cold like -1 cold. she starts up as usual, no problem. I start driving down the road and I hear this loud wistle coming from the engine bay somewhere and start to listen closely. I can not figure out where the hell it is coming from and it starts to bug me so I get out and look. Well I find nothing and get back in the car and drive on. Well I hear it again, 1st gear second gear so on and so forth, but is is only showing up, in the begining around 2200-3500 rpms. and is only sparatic, like as im shifting and then accelerating. Then it starts doing it constant @ 2800 rpms. as the car is warming it starts to fo away but can still be herd once in a while. Any ideas???

Raullopy

how do i go about finding and fixing it