发动机异响是车辆使用过程中经常出现的一种现象，它表明发动机存在某种故障，应及时诊断和排除。对于一般驾驶人员或维修单位在无检测仪的情况下对此多凭人的经验来判断，今笔者把在日常工作中所遇到的几种发动机常见异响的特点及诊断方法总结如下供大家参考。一．发动机... Engine noise is a phenomenon often used in the vehicle during the operation, it shows that the engine has some fault, it should be promptly diagnosed and ruled out. For the average driver or maintenance unit in the absence of detector in this case with more people’s experience to judge, I now encountered in their daily work of several common characteristics and diagnostic engine noise summarized as follows for everyone reference. one. engine...