The grinding could be a bad pulley. If it is, it can break at any time and leave you stranded. Check out this video which should help you diagnose the noise:
i think it should be in the shop getting fixed.
you can drive it till it quits running if you like.
Yeah its a old belt find which one it is and buy it/replace it
I have a 2002 Mitsubishi Lancer. It has about 153,000 miles. When I turn it on, it makes a loud grinding sound and it only stops when I turn on the AC. I dont know what it could be...Does anyone know what it could be and if it will be safe to drive for about two days since I have to work and go to school. Thanks in Advance.