Sounds like the rotors may be warped and there is no way to visually inspect for that, they need to be pulled and put on a brake lathe or on the car with a dial indicator, as far as the grinding, you may have an inner pad on one side or both going metal to metal, whatever you do the longer you wait to have it checked the more cash it will cost you and its a safety issue, hope this helped
jim
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Friday, February 23rd, 2007 AT 9:12 PM