What could the problem be if a 2000 Hyundai Elantra shakes when applying the brakes when going over 55 miles per hour?

Answer

Perhaps it has to do with the antilock brakes?

By the way...Any electric problems?

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IT IS NOT antilock brakes, on mine it was that I needed brakes. I replaced the pads and had the rotors cut. No problem since then.

Now the steering wheel shakes between 65 and 75mph but I dont think thats the brakes.

Dave

Answer

When your braking at higher speeds there is much more heat generated within the brake system. It can get so hot that brake rotors will temporarily warp until cooled, giving you the vibration while braking. I strongly recommend replacing the rotors, not machining them. IF you make them thinner, the are even less likley to be able to dissapate heat and you will be back in the same boat all over again. Put new pads on at the same time for 2 reasons. One the old ones will not mate up accuratly to the new rotors and give less surface area for stopping causing a longer braking distance. Second, the beating the pads that from the pulsation that you are putting them through will comprimise their integrity. In Dave's case the higher speed vibration is likley attributed to a wheel balance problem.

First answer by anonymous. Last edit by Bclear. Contributor trust: 1473 [recommend contributor]. Question popularity: 61 [recommend question]