This abnormal sound may be caused by the following problems: it is more troublesome to replace the rubber sleeve of the balance bar generally, because the rubber sleeve is generally on the spindle beam, and the man-hour cost of disassembly is relatively high! If the rubber cover is badly worn, there will be a bang, bang and dull sound. If the rubber sleeve is not badly worn, it will be hard and squeaky, and it needs to be replaced with a new one.
If it just squeaks, you can add some butter and the problem will be solved! The rubber sleeve of the balance bar is too hard or aging, and eventually there will be bumps and squeaks!
Some cars have no pressure bearings, and the ball heads of the upper and lower arms rotate with the direction. If there is a gap in the ball head or the ball head is rough, this sound will appear, and sometimes it will creak!
Generally, it is enough to find the fault from the above three aspects in the case of abnormal noise of cold car and abnormal noise of hot car. If you are not afraid of noise, you can not repair it first. When the weather gets warmer, the abnormal noise may disappear automatically!