What causes a clicking sound when turning the steering wheel?

[SanZachary]

The reasons for a clicking sound when turning the steering wheel: 1. Friction noise from the steering wheel horn electrode; 2. Noise from the steering column universal joint or the steering column rubbing against the floor mat; 3. Noise from the steering wheel return lever. The friction noise from the steering wheel horn electrode is more common in vehicles without airbags, where the steering wheel only has a horn button. Since the horn switch rotates with the steering wheel while the connecting wire below remains stationary, the wire can easily break when turning the steering wheel. Noise from the steering column universal joint or the steering column rubbing against the floor mat occurs because the front end of the steering column has a universal joint. Sometimes, lack of lubrication in the universal joint can cause a clicking sound, in which case the universal joint needs to be lubricated. The turn signal has an automatic return function. When the turn signal is on and the steering wheel is turned, the steering column hitting the return lever can produce a clicking sound.