I have a Mazda Miata 2001, 152,000 miles. It’s developed a metallic scrape from the right rear wheel. When I’m driving about 20 mph it sounds like a scritch every half-a-second or so, and if I’m going faster it just blurs into a metallic scrape. When I tap the brakes, it usually stops, and then it’ll come back a little bit later (maybe when I hit a bump?) It comes and goes, but it seems to be more persistent now (or maybe I’m just always listening for it).
I took the wheel off and sprayed brake cleaner everywhere and I thought that had fixed it, but it came back again after a week maybe.
Any suggestions how to figure out what’s wrong?
Thanks in advance,