2000 Sunfire Engine Noise (HELP!!)

I have a 2000 Sunfire, I'm pretty sure it's a 2.2 L and it has automatic transmission. I have a remote after market car starter and the other day I started the car and it sounds like something is ginding under the hood. The noise that came to mind is the sound of water running though pipes. Can anyone give me tips ASAP?? Thanks!!

Check the ac compresser or the tension pully,very common to go.

Thanks!! You were absolutly right, It was the air conditioning compresser clutch!!!

Thanks again!