What are the symptoms of a faulty plain bearing?
2 Answers
When a plain bearing is faulty, the following symptoms may occur: 1. A "click-click-click" noise when turning the steering wheel. 2. A "thud-thud-thud" sound when turning the steering wheel while stationary or at low speeds. 3. Vibration in the steering wheel, increased steering effort, and noticeably louder tire noise while driving. In severe cases, a "humming" sound may be heard. 4. Noise when passing over speed bumps, vehicle pulling to one side, damage to the steering system, and damage to the suspension system. 5. Poor quality bearing materials and insufficient surface treatment hardness. The first part to fail is the area marked in the red circle, as it is the weakest point.
As a veteran driver with over a decade of experience, the most obvious symptom of a failing wheel bearing in my experience is steering-related noises. Every time you turn the steering wheel, there's a distinct clunking sound near the front wheels, like steel balls rolling and getting stuck. It's particularly noticeable during low-speed turns, feeling like something is grinding inside the steering system. The steering wheel also doesn't return to center smoothly anymore - whereas it used to automatically recenter with a light touch, now it requires manual assistance. On bumpy roads it gets worse, with continuous dull metallic knocking sounds coming from the front end, and occasional fine vibrations can be felt through the steering wheel. These symptoms make driving particularly uncomfortable, especially during long-distance trips which become downright torturous. My advice is don't hesitate when you notice these signs - get your suspension system checked immediately, as this directly relates to driving safety.