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May 2, 2016 at 18:55 comment added X-tech2 I agree with @jimmyFix-it. Brake rotors can warp. It was worse on older cars, when the rotors were thinner, and solid, and they would actually warp. You could spin the rotor and actually watch the brake pads move in and out in their holder. The "pulsing" pedal comes when the rotor thickness is changed due to uneven heating and rapid cooling. They can be turned or replaced. Just because you haven't seen it, doesn't mean it cannot happen. Oh, and if the steering wheel shakes when braking, it's probably the front rotors, if not, probably the rear.
Apr 26, 2016 at 6:23 comment added Alexus @JimmyFix-it I have never seen a rotor warp - it takes a severe overheating to do that, and even then, it's a huge chunk of metal. I doubt it's achievable with a street vehicle.
Apr 26, 2016 at 5:34 comment added Jimmy Fix-it @Alexus, although I agree with you that pad material on the rotor is a common cause of vibration and/or "pedal pulse", you are quite wrong to say "there is no such thing as rotor warping".
Apr 25, 2016 at 23:59 comment added Alexus There is no such thing as rotor "warping". Vibrations mean thickness variations, which usually come from a baked pad material when you slam the brakes and come to a stop and keep holding your brakes.
Apr 23, 2015 at 22:14 comment added Pᴀᴜʟsᴛᴇʀ2 You should take a read of this.
Apr 23, 2015 at 4:34 history edited X-tech2 CC BY-SA 3.0
Accidentally hit post button before explanation completed
Apr 23, 2015 at 4:24 history answered X-tech2 CC BY-SA 3.0