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Khi chạy nghe tiếng kêu lạ (rít, cọ, cốc)

先判断声音位置 (前后/左右/踩踏),再定位轴承/链条/刹车。

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Symptoms

  • 低速嗡嗡声
  • 刹车时尖锐声
  • 颠簸路面咯吱响