1, interference between parts
Possible cause: The two components interacted due to the impact or installation of other equipment. Solution: Interference between parts can only be caused by plastic repair or replacement of related parts.
2. Loose bolts or nuts
Possible reasons: a, driving on a road with poor road conditions, the bolts naturally loosen; B, just removed and installed bolts are damaged; C. Tightening torque is sufficient or bolt specifications are appropriate. Solution: Tighten or replace bolts and nuts.