A car shaking when braking is usually caused by issues related to the braking system or the tires. Here are the common reasons for this problem:
- Warped Brake Rotors : Brake rotors are metal discs that the brake pads clamp onto to slow the car. Over time, these can become warped due to heavy braking or wear, causing uneven contact with the brake pads. This unevenness creates vibrations felt while braking, often making the steering wheel shake.
- Worn or Uneven Brake Pads : Brake pads press against the rotors to stop the vehicle. If the pads are worn unevenly or have accumulated dirt and debris, they can cause pulsations or vibrations during braking.
- Brake Caliper Issues : The calipers press the pads against the rotors. If a caliper is sticking, worn, or corroded, it can cause uneven pressure on the rotors, which results in shaking and sometimes pulling to one side during braking.
- Tire Problems : Imbalanced, worn, or damaged tires can cause vibration that becomes more noticeable when braking.
- Suspension or Wheel Bearing Issues : Problems with suspension components or damaged/loose wheel bearings can also cause vibrations when braking.
If your steering wheel shakes specifically when you apply the brakes, warped rotors are the most common culprit, but it’s important to also check tire balance and brake calipers. Driving with these issues can reduce braking efficiency and increase accident risk, so it’s advisable to have your vehicle inspected and repaired by a professional if you notice these symptoms.
Basic steps for diagnosis include checking for rotor warping, ensuring tires are balanced and in good condition, and inspecting brake calipers and pads. Replacement of warped rotors and worn brake pads typically resolves the issue.
