I have a 2001 Lumina, and since I bought it, the brakes have been squeeking really bad. Not grinding, squeeking. I took all the wheels off, and sprayed brake cleaner in all them, and put it all back together, still same deal. Pads are all over half there. and rotars are not warped. Could it just be the humid weather? What should I do. BTW, my car is a 2001 with only 40,000 miles on it. Thanks for your replies!!!