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What causes a vibrating in the van when you put on brakes

(2003 Honda Odyssey)
in Century, FL on August 08, 2011
when putting on brakes, my van vibrates or shutters slightly. Could it be the rotors?
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Popular Answer
When the brakes are applied to slow down the vehicle heat is produced. This heat may cause the brake rotors to warp or buckle. If the brake discs are warped even three or four one thousandths of an inch, the brake pedal may pulse and the vehicle may shake when the brakes are applied. If the brake discs are badly warped the whole vehicle may shake and cause the steering wheel to oscillate and shake from side to side under braking.To eliminate this unwanted vibration the brake rotors need to measured both for uniform thickness and “run out”. Run out is a measurement by rotating the brake disc and accurately measuring how much deflection the surface of the brake disc takes as the disc is rotated. The brake discs are brought back to uniform thickness and parallelism by machining the brake discs if there is sufficient material left to remove. If the brake pads have worn down to the point where they have damaged the brake discs the brake discs will need to be machined or replaced.
A vibration up on braking could also be caused by worn suspension bushings so its best to properly check things out before assuming it is the rotors but rotors are the most likely cause
on August 09, 2011
thanks for the response. that was what we figured was going on.
on August 07, 2014
We replaced our rotors with Centric brand (cryo treated) rotors. are not having any problems. make sure you put new pads on as well wether they are worn or not. will help them break into the new rotors. 140$ a piece.
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