I get a high pitched grinding sound on my 93 Accord when I go over a bump or or sometimes when turning the steering wheel. It sounds real similiar to metal on metal when the brake pads are low. I had to have the brakes bled about 5 months ago because the brake pedal was going to the floor. Occasionally it seems now like I need to pump the brakes to get the pressure back up. Any ideas. BTW I don't work on my own car unless it's something pretty simple. TIA