When the weather is very hot, the steering wheel will make a little noise when driving at low speed.

The reason may be that poor lubrication caused by lack of oil leads to abnormal sound of steering wheel shaft and universal joint; It is also possible that when the steering wheel rotates, the horn reed makes abnormal noise when it rubs against the lower part of the steering wheel. It is also possible that the rubber sleeve between the steering rod and the suspension is worn after long-term use, and the rubber sleeve is too hard at low temperature, resulting in friction between the rubber sleeve and the connection part during steering.