My brakes have shuddered on and off for the past couple months. Sometimes they worked just fine, other times the whole car would shake.
I was ready to buy new rotors but as a last resort, I decided to re-torque my wheels, step-by-step by the book leaving nothing to chance. I jacked up each wheel, then set it down with barely enough pressure to hold it (a 2x4 or brick would have been better but I had neither). I then torqued the lugs in 20 ft-lb increments in the proper criss-cross pattern. As in, first each lug is torqued to 20 ft-lbs, then again to 40 ft-lbs, all the way up to factory specs.
Results: most of my shuddering is now gone. On some stops it still shudders a little but much much less than before. I'll give it some time before a final verdict, but if you think you have a brake warping problem, check the torque first!
