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Why would a car shake after new winter tires installed?

There are several possible reasons why your car might shake after installing new winter tires.

* Tire imbalance: This is the most common cause of shaking after getting new tires. When tires are not properly balanced, they can cause a vibration that can be felt through the steering wheel, floorboard, or seat. Make sure the mechanic installed your tires correctly with a hub-centric ring if needed, and have the tires balanced and rotated as needed.

* Improper tire pressure: If the new tires are not inflated to the correct pressure, it can also cause shaking. Make sure to check the recommended tire pressure for your vehicle and inflate the tires accordingly.

* Loose lug nuts: Make sure the lug nuts are tight and secure. If the lug nuts are loose, it can cause the wheel to wobble, which will result in shaking.

* Worn suspension components: If you have worn suspension components, this could also cause your car to shake after getting new tires. Worn suspension components can include ball joints, tie rods, and control arms.

* Warped brake rotors: If you have warped brake rotors, this could also cause a shaking sensation. Warped brake rotors can be caused by a number of things, including uneven wear and tear, overheating, or damage.

* Damaged wheel bearings: If you have damaged wheel bearings, this could also lead to a vibration. Wheel bearings are responsible for allowing the wheels to rotate smoothly. If they are damaged, they can cause the wheel to wobble, which will result in shaking.

If the shaking continues, it is best to take your car back to the mechanic to have it diagnosed.