Brake calipers are responsible for clamping the brake pads against the rotors to slow down the vehicle. When they become faulty, the calipers may not be able to apply the necessary pressure, resulting in vibrations. Additionally, if the calipers are not greased properly, they can make a rattling sound when the brakes are applied.
2. Worn-out Brake Pads or Rotors:
Damaged or worn-out brake pads or rotors can cause the car to shake when the brakes are applied. Uneven wear or warping of the rotors, in particular, can create pulsations and vibrations through the steering wheel and the entire vehicle.
3. Loose Wheel Lug Nuts:
Loose or improperly tightened wheel lug nuts can cause the wheels to wobble, resulting in vibrations that are felt throughout the vehicle, including the steering wheel. When braking, this wobbling can be amplified and cause the car to shake.
4. Faulty Wheel Bearings:
Worn-out or damaged wheel bearings can lead to excessive play in the wheel, which can cause vibrations and shaking when the brakes are applied. This issue is more pronounced at higher speeds and can also generate humming or grinding noises.
5. Driveshaft or CV Joint Issues:
In some cases, a faulty driveshaft or a worn-out constant velocity (CV) joint can be the source of vibrations and shaking during braking. These issues are more common in front-wheel-drive vehicles and can cause the steering wheel and the car to vibrate.
6. Engine Mounts or Transmission Mounts:
Worn or damaged engine mounts or transmission mounts can allow excessive engine or transmission movement, which can lead to vibrations that are felt through the entire vehicle. These vibrations may be more noticeable when braking, as the engine or transmission torque can cause additional strain on the mounts.
If you experience shaking or vibrations when you brake, it's important to have the vehicle inspected by a qualified mechanic. Depending on the cause, repairs or replacements may be necessary to address the issue and ensure safe and smooth braking performance.