1999 Plymouth Voyager - Grinding Noise

Ok, to check this problem, if u have more than one belt, take off the outer belt first then start the engine. If the noise goes away, then look into finding out which pully is making the noise. I have found that a grinding noise coming from the engine area is either the alternator, tensioner pully, ac acompressor, or idler pully. Still check them all. Another way is to (with all the belts on) take a long screwdriver and put the handle up to youe ear and touch the blade end on all suspected parts to see if it gets louder on some parts and not as loud on others. Also remove all belts and with your hand grab the pulleys and feel for any play and roughness. I usually start with the alternator first. Hope this helps