发动机发生故障有时会伴有异响出现,对异响进行分析是直观诊断故障原因和部位的有效途径。 1.要分清是主机响还是附件响对于发动机的响声,首先要确定是主机响还是附件响。如果将风扇传动带松开后响声消失,说明该响声与水泵或发 Engine failure sometimes accompanied by abnormal sound, the analysis of abnormal sound is an intuitive way to diagnose the cause of the malfunction and the site of an effective way. 1. To distinguish between the main ring or the attachment ring For the engine noise, we must first determine whether the host ring or attachment ring. If the fan drive belt loose after the disappearance of the sound, indicating the sound and pump or hair