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1苏州金龙KLQ6125B1A型客车冷却液温度过高故障现象一辆行驶里程约为37万km的苏州金龙KLQ6125B1A型客车(配置玉柴YC6L330-30发动机),驾驶人反映,该车冷却液膨胀箱漏冷却液,更换后出现冷却液液位升高、温度超过100℃、高温报警的故障。故障诊断车辆回厂后,维修技术人员根据驾驶人反映的更换冷却液膨胀箱后造成冷却液温度过高的情况,直觉地认为是因冷却液膨胀箱的液管头堵塞引起的。于是拆掉液管检查液管头,用压缩空气吹冷却液膨胀箱的液管头,液管头是通的。怀疑是其他部位存在故障(故障刚好在更换
1 Suzhou Jinlong KLQ6125B1A bus coolant temperature is too high Fault phenomenon A mileage of about 370000 km of Suzhou Jinlong KLQ6125B1A bus (configuration Yuchai YC6L330-30 engine), the driver reflects the car coolant expansion tank leak cooling Liquid, after the replacement of the coolant level rise, the temperature exceeds 100 ℃, high temperature alarm failure. Fault diagnosis After the vehicle back to factory, the maintenance technician according to the driver to replace the coolant expansion tank caused by the coolant temperature is too high, intuitively think is due to the coolant expansion tank head plug caused. So remove the liquid pipe inspection head, with compressed air blowing liquid expansion tank liquid pipe head, liquid pipe head is connected. Suspected to be other parts of the fault (fault just in the replacement