Quote:
Originally Posted by legion
Unless you can physically feel the brake pedal pulsating, it's usually not warping. Usually, it is simply oxidation built up on one part of the rotor but not another part. This can be caused by washing your car on the driveway (the calipers protect part of the rotor) or having the car parked in the rain.
This happens to my wife's car every single time it rains and she has it parked at work. The solution? Taking the car out into the country, winding it up to 70, and applying the brakes firmly until it comes to a complete stop. (Basically re-bedding the pads.) It wipes the oxidation right off of the rotors.
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This is true. It is very tough to warp rotors, or at least it should be. The feeling of unsteady gripping of the brakes can be caused by brake pad deposition on the rotors. When the rotors get hot, then you sit at a stop light with your foot on the brakes, a thin layer of the pads can chemically bond to the surface of the rotors, giving you the feeling that they are warped.
In my experience, the brake pad deposits can be very tough to get off, and turning the rotors may be necessary. So the fix is the same, but I bring it up to point out that going with a cheap
brake pad can cause the problems you guys are talking about.