* Unbalanced or out-of-round tires. This is the most common cause of a shaking steering wheel. When tires are unbalanced, they can cause the vehicle to vibrate at certain speeds. Out-of-round tires can also cause a shaking steering wheel, but they are less common.
* Worn or damaged suspension components. Worn or damaged suspension components, such as control arms, ball joints, and tie rods, can also cause the steering wheel to shake. These components help to keep the wheels aligned and balanced, so when they are worn or damaged, they can cause the vehicle to vibrate.
* Brake problems. Brake problems, such as warped rotors or worn brake pads, can also cause the steering wheel to shake. When the brakes are applied, the rotors and brake pads come into contact with each other. If the rotors are warped or the brake pads are worn, they can cause the vehicle to vibrate.
* Driveline problems. Driveline problems, such as a worn or damaged driveshaft, can also cause the steering wheel to shake. The driveshaft is responsible for transmitting power from the engine to the wheels. If the driveshaft is worn or damaged, it can cause the vehicle to vibrate.
If you are experiencing a shaking steering wheel, it is important to have it inspected by a qualified mechanic as soon as possible. This will help to identify the cause of the problem and prevent it from becoming more serious.