Re: Warped discs
The rotors are probably not warped. Uneven deposits of brake pad material on the rotors will cause brake pedal pulsation. Do a series of five maximum braking runs from 60mph - 5mph. When you are done, cruise around and let everything cool off. Do not sit at a stop with the brake pedal engaged. If you must stop, put it in park instead. This will keep more pad deposits from sticking to the rotors. You will probably notice a much smoother brake pedal after this. True warping of rotors is uncommon, uneven pad deposits are very common. Most shops will not tell you this because they make a lot of money resurfacing rotors.
I live at the top of an 800' high hill. I have had more than one vehicle that would load up the rotors with pad deposits after a long descent with lots of braking. This technique worked every time. Doesn't seem to be a problem with my SRT8, but I have had a minivan and SUV that would do this often.
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