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一辆2011年上海通用雪佛兰赛欧,搭载1.2L LMU发动机、EMT电子手动变速器。行驶里程:87000km。故障现象:因为车辆在升到5挡时“呜呜”异响报修。故障诊断:考虑到车辆换挡并无异常,因此接下来的维修可按照修手动变速器的方法进行。由于除5挡外的其他挡位行驶正常,初步判断问题出现在5挡齿轮和同步器上。直接从车上拆开变速器后壳发现5挡主动
A 2011 Shanghai GM Chevrolet Sail, equipped with 1.2L LMU engine, EMT electronic manual transmission. Mileage: 87000km. Symptom: Because the vehicle rose to 5 block “hum ” abnormal repair. Troubleshooting: Taking into account the vehicle shift without exception, so the next repair can repair the manual transmission method. Due to the normal operation of the other gears except for the fifth gear, the problem is initially identified in the fifth gear and the synchronizer. Detach the transmission directly from the car and found the 5-speed rear case active