What Causes Steering Wheel Friction Noise?

[Crystal]

Insufficient lubrication in the thrust bearing, looseness in the stabilizer bar bushings, or excessively dirty power steering fluid can all cause noise. Here are the detailed explanations: Thrust Bearing Insufficient Lubrication: If you notice abnormal noises coming from outside the vehicle when turning the steering wheel, it could be due to insufficient lubrication in the shock absorber's thrust bearing. Stabilizer Bar Bushings Looseness: If the noise is not from the shock absorber's thrust bearing, check for looseness or damage in the stabilizer bar bushings. Loose or damaged stabilizer bar bushings can cause noise not only when turning the steering wheel but also when driving over uneven roads. Excessively Dirty Power Steering Fluid: If the power steering fluid is too dirty, it increases the pressure in the power steering system, leading to a "buzzing" noise from the power steering pump. It is essential to replace the power steering fluid promptly.