Unbalanced tires or wheels can cause the steering wheel to vibrate when the engine is under load. They may be caused by uneven tread wear, a defective tire, or incorrect tire installation.
2. Damaged suspension components
Damaged suspension components, such as control arms, ball joints, or tie rods, can also cause the steering wheel to vibrate. These components can become worn or damaged over time, especially if the car is driven on rough roads.
3. Driveshaft problems
A damaged driveshaft or a faulty universal joint can also cause the steering wheel to vibrate.
4. Engine mounts
Worn or damaged engine mounts can allow the engine to move excessively, causing the steering wheel to vibrate.
5. Transmission issues
A faulty transmission or a damaged clutch can also cause the steering wheel to vibrate.
6. Power steering problems
A faulty power steering pump or a damaged power steering hose can also cause the steering wheel to vibrate.
7. Loose lug nuts
Loose lug nuts can cause the wheels to wobble and can lead to steering wheel vibrations.
8. Other issues
Rarely, a vibrating steering wheel can be caused by other issues, such as a faulty ignition coil or a bad spark plug.
