A: The front axle of the sedan is used as the drive axle and the steering axle. When the vehicle is running, the internal gear meshing clearance or the spline matching clearance is too large, and the “clinking” metal impact sound is emitted; for example, the steering axle abnormal noise increases with the increase of the vehicle speed. But if the sound becomes smaller when taxiing, it is caused by loose and wear bearing ; improper operation, violent lifting of the clutch forcibly over the pit, overload or starting operation on a large slope, causing abnormal noise when the internal mail is subjected to a violent impact When the lubricating oil is too dirty and the lubrication is poor, abnormal noise will occur. In addition, the knuckle king pin loose, the knuckle bearing loose, the front axle bearing damage, the wheel is not normal, the brake drum is out of round, etc., causing abnormal noise when braking.
In view of the above faults, attention should be paid to strengthening lubrication and maintenance, pay attention to the operation method, check the gap and adjust it, tighten the loose parts in time, and replace them if necessary.