My 97 has been having some issues recently with the starter. Every once in a while it won’t start but a hit with a hammer has been getting it going every time. Today it cranked up fine but there was a unpleasant sound coming from the engine so I turned it off. Opened the hood and checked around, everything seemed fine so I tried to fire it up again, but this time all I got was a weird grinding noise from I think the starter. Almost sounded like it was revving, kind of a hard sound to explain in words. Is it just time I replace the starter? Or any other ideas of what it could be? I’m not super mechanical so I wanted to ask here