car shakes when braking at high speeds on 2006 Nissan Altima

why does car shake when braking at high speeds

by in Trenton, NJ on April 26, 2009
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2 answers 1 comment
ANSWER by , April 26, 2009
Shaking of the car under braking can be a sign of worn suspension bushings but is most likely a sign of warped front brake rotors. When you apply the brakes, brake pads come in contact with the brake rotor/disc in a very similar way as the brake blocks come in contact with the rim of a bicycle. If the rim is buckled you feel the brake lever on the handle bar pulse. Same thing happens when you apply the brakes in car, if the rotors are warped you will feel the brake pedal and steering shake and pulse on braking. If the brake rotors are sufficiently thick they may be remachined and reused. If the brake rotors do not have sufficient material to machine away the rotors may need to be replaced.
COMMENT by , January 17, 2011
Yes it was Thanks
ANSWER by , January 27, 2010
Because of warped brake rotors. just replaced mine on my 00 ls