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What cause the car to wobble when slowing?

Several factors can cause a car to wobble when slowing down:

1. Warped rotors: When the rotors (the discs that the brake pads press against) are warped or uneven, it can cause the brake pedal to pulsate and the car to wobble. Warped rotors can result from overheating due to excessive braking or uneven pad wear.

2. Uneven tire wear: If your tires are unevenly worn, it can cause the car to vibrate or wobble when braking. This can be caused by several factors, such as misalignment, worn suspension components, or uneven tire pressure.

3. Wheel balancing issues: Improperly balanced wheels can also cause the car to shake or vibrate when braking. Wheel balancing involves evenly distributing the weight of the wheel and tire assembly to minimize vibrations.

4. Loose or damaged suspension components: Worn or damaged suspension components like control arms, tie rods, or ball joints can cause the car to shake or wobble when braking. These components play a crucial role in maintaining proper wheel alignment and stability.

5. Driveline problems: Issues with the driveshaft, transmission, or differentials can also cause the car to wobble when slowing down. Driveline problems can range from worn components to misalignment or improper lubrication.

6. Faulty brake components: Besides warped rotors, other components like faulty brake calipers, brake pads, or brake lines can also contribute to the car's shaking while slowing down.

It's important to address any of these issues promptly to ensure safe and smooth operation of your car. If you notice any unusual wobbling or vibrations while braking, it's best to have the vehicle inspected by a qualified mechanic to identify the exact cause and have it rectified.