故障现象一辆行驶里程仅为1000 km的2012款凯迪拉克SRX车,挂倒挡冲击,振动感强烈,有时伴有“咕咚”一声,其他挡位正常。车辆行驶过程中各挡工作状态均正常,仪表信息中心没有任何报警提示信息,发动机故障灯没有点亮。故障诊断该车辆为墨西哥原装进口车,接车后笔者陪同客户试车确认故障现象,发现挂倒挡冲击的确比其他同年款同车型车辆明显。检查底盘各部件,无磕碰现象;各连接螺 Fault phenomenon A mileage of only 1000 km of the 2012 Cadillac SRX car, hanging block impact, a strong sense of vibration, sometimes accompanied by “”, other gear normal. Vehicles in the process of working status of each block are normal, there is no instrument information center warning message, the engine fault light is not lit. Fault diagnosis The vehicle imported cars in Mexico, the car after the car I accompanied the customer test to confirm the failure phenomenon, found that the impact of the gear is indeed more than the other models with the same year models with obvious. Check the chassis components, no bump phenomenon; the connecting screw