I have a 2002 Ford Explorer Sport and after a brake job I noticed that while under braking at slow speed there would be a grinding sound on the front left. I replaced the brakes and wheel bearings the first time. After a while I ended up replacing the caliper itself but it still grinds. I don’t notice any wheel shaking, pulling and it hasn’t locked up although once I did notice a some smoke under hard braking but only once. I also don’t hear any grinding while not braking. Thoughts?