I am the owner of a pontiac bonniville, it has been a great car even though it is very old ('89 ) a few months ago the brakes started to grind badly. but the funny thing is, is that there was no sqeeking of any kind before the grinding. I'm very concerned because it makes me wonder how well the previous owners took care of the car, or how well the brake shop fixed the brakes the first time. depending on the temp. of the day sometimes they don't grind at all, but then sometimes they are super loud. I need to know if it is too late to just get the brakes fixed or if it is going to be a costly repair.
frusterated and very concerned car owner.