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Car Problem Diagnosis: Steering wheel shakes when braking, shaking of steering wheel occurs when the brake pedal is depressed. The steering wheel shaking when braking is extreme that it can easily be notice by the driver.

Car diagnostic: Steering wheel vibration or shaking of the steering wheel when the brake is applied is an indication of a problem mainly that mainly involves the car front end. And since the occurrence of steering wheel vibration or shaking of steering wheel happens during braking only, therefore it is safe to assume that the problem is within the front brakes. This kind of problem is often cause by a misalignment between the front pad and the disc. As you may know the front brakes are connected to the steering wheel by means of the front end, since this is the case therefore when there is a problem on the front brakes it can easily be notice through the behavior of the steering wheel like the shaking of the steering wheel or steering wheel vibration when you brake.

Since the brake pad and brake disc is misaligned, it will resulted to uneven contact between the brake pad and the brake disc when brake is applied, thus a vibration occurs. The vibration will then be transferred to the steering wheel which and can be noticed when the car brake. Misalignment is commonly cause by a warped front disc, other possible reason is a worn out or loose front wheel bearings.

Car Problem: Warped Front brake Disc or Loose/Worn Out Front Wheel Bearings.

Auto Mechanic Tips: Bring the car to a reputable auto repair shop and ask a mechanic to first check your car front wheel bearing for any looseness or wear, if the result is good, then the possibility is that the problem is a warped brake disc. Have the brake disc machined to fix the problem.

However, when your brake disc is machined, it is necessary to replace your brake pads so that it will mate and align to the brake disc, this will fixed the steering wheel vibration when braking.