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What can cause car to shake when breaks applied?

Warped Brake Discs:

Warped brake discs, also known as rotors, can cause vibrations when braking. This is usually caused by uneven wear or heat build-up on the discs. It can also be caused by using low-quality brake pads that don't withstand heat properly.

Check for uneven wear by inspecting the brake discs. If you see grooves, cracks, or excessive wear, it may be time to have them replaced.

Loose Wheel Nuts or Bolts:

Loose wheel nuts or bolts can also lead to shaking when braking. If the lug nuts are not properly tightened, the wheel can become loose and cause the car to vibrate when braking.

Inspect the wheel nuts with a lug wrench, ensuring they are tight and secure. Tighten any loose nuts or bolts immediately.

Unbalanced Tires:

Unbalanced tires can also result in shaking when braking. This is particularly noticeable at higher speeds and when braking hard. Unbalanced tires can cause the wheels to wobble and create a vibration throughout the vehicle.

Have your tires inspected and balanced by a professional to ensure they are even and properly balanced.

Damaged Suspension Components:

Damaged or worn suspension components, such as ball joints, control arms, or tie rods, can also contribute to shaking when braking. These components play a crucial role in maintaining proper wheel alignment and absorbing vibrations.

Inspect the suspension system for any signs of damage or wear and replace any faulty components as needed.

Sticking Brake Calipers:

Sticking brake calipers can cause the brakes to engage even when you release the brake pedal. This can lead to the brakes overheating, causing the car to shake when braking.

Check the brake calipers to make sure they are properly lubricated and functioning smoothly.

Driveline Issues:

In some cases, shaking when braking can indicate driveline issues, such as a damaged driveshaft or faulty CV joints (constant velocity joints). These components transmit power from the transmission to the wheels and can cause vibrations when worn or damaged.

Inspect the driveline components or consult a professional for further diagnosis.