1. CV Joint Failure: The clicking and thumping sounds when turning the steering wheel can indicate a worn-out or damaged constant velocity (CV) joint. The CV joints are responsible for transmitting power from the transmission to the wheels while allowing them to move at different angles. If the CV joint is worn or damaged, it can cause these clicking and thumping noises when turning.
2. Loose Steering Components: Loose steering components such as tie rods, ball joints, or control arms can also cause clicking and thumping noises. These components are responsible for connecting the steering wheel to the wheels and if they become loose, they can cause a knocking or thumping sound when turning the wheel.
3. Rack and Pinion Steering Failure: The rack and pinion steering system is a common steering mechanism in vehicles and if it fails, it can cause clicking or thumping noises when turning the wheel. This failure can occur due to worn-out components or a lack of lubrication.
4. Worn-out Struts or Shocks: Worn-out struts or shocks can also contribute to clicking or thumping noises when turning the steering wheel. These components are responsible for absorbing shocks and vibrations from the road and if they are worn out, they may not be able to do so effectively, leading to these noises.
5. Damaged Wheel Bearings: Damaged wheel bearings can also cause clicking or thumping sounds when turning the steering wheel, especially when the vehicle is moving at low speeds. Wheel bearings are responsible for allowing the wheels to rotate smoothly and if they are damaged, they can produce these noises.
Recommendation:
It is important to have the vehicle inspected by a qualified mechanic to identify the exact cause of the clicking and thumping sounds when turning the steering wheel. Ignoring these sounds can lead to further damage and compromise the safety of the vehicle. The mechanic will be able to diagnose the issue accurately and recommend the necessary repairs or replacements.
Here are a few additional tips:
- Pay attention to any other symptoms your car may be exhibiting, such as: abnormal tire wear, vibration in the steering wheel, or a pulling sensation while driving. These symptoms can provide clues to the underlying issue.
- Avoid driving the car until the problem has been diagnosed and repaired, as it could worsen and lead to a more expensive repair.
- If you are not mechanically inclined, it is best to leave the diagnosis and repair to a professional mechanic.