What Causes the Abnormal Noise When the Car Turns?

[OKira]

Abnormal noise when the car turns can be caused by the following reasons: 1. Friction between plastic parts: Since the steering wheel is usually made of plastic components, if the temperature drops, the plastic may harden, naturally leading to friction noise. 2. Noise from the steering wheel: If the noise comes from inside the steering wheel, it is most likely due to the clock spring (airbag coil). Remove the steering wheel clock spring, apply some grease, and check if the noise persists. If it does, replace the clock spring as it may be damaged. 3. Aging of the tie rod end ball joint: If the tie rod end ball joint ages, it can cause the car's steering wheel to shake and produce noise. In this case, the tie rod end ball joint should be replaced, followed by a wheel alignment. 4. Noise from the stabilizer bar: If the noise is not from the shock absorber, check if the stabilizer bar bushings are loose or damaged. Loose or damaged stabilizer bar bushings can cause noise not only when turning but also when driving on uneven roads. Loose bushings can be fixed by adding shims, but damaged ones must be replaced. 5. Noise from the shock absorber thrust bearing: Open the hood and listen if the noise comes from the top of the shock absorber mount. If it does, the noise is likely from the shock absorber thrust bearing. Applying grease to the thrust bearing may help, but if the noise continues, the bearing must be replaced. 6. Steering gear failure: If the noise during steering is very loud, it might be due to excessive gear clearance in the steering gear, which requires replacement. 7. Improper tension or aging of the power steering belt: For mechanical hydraulic power steering systems, if the belt is too loose, too tight, or aged, it can produce abnormal noise. Adjust the belt tension or replace the belt.