Eddy, I'm not sure what "pulley grinding" means, is the pulley itself rubbing against something? Or is the part behind the pulley making internal noises? I certainly would not drive a car that makes grinding noises. Whatever it is, it's very likely to cause expensive damage.
I can't tell what you have there, but the serp belt usually drives only the alternator, compressor and water pump. And PS pump if it has one. Plus a bunch of idler pulleys. So shouldn't be that difficult to tell by inspection what is behind the pulley that makes noise.
Last edited by dxG6; 04-19-2019 at 12:19 PM.