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故障现象一辆2002年款HFC6500A1瑞风商务车(装配韩国原装G4JS带分电器、8气门的电控汽油发动机和五速手动变速器),累计行驶了近30万km,因出现冷却液温度过高的故障而到某汽修店检修。故障诊断据该车驾驶人反映,该车近两年每到炎热夏季停车后都会听到发动机室储液罐内发出“咕嘟、咕嘟”的声音,尤其在市区长时间行驶或停车长时间使用空调时故障现象更为突出,但在高速公路上行驶时冷却液温度表
Trouble A 2002 HFC6500A1 Rui Feng commercial vehicle (equipped with South Korean original G4JS with distributor, 8-valve electric gasoline engine and five-speed manual transmission), accumulated a total of nearly 300,000 km, due to the emergence of the coolant temperature is too high Trouble to a garage repair. According to the car driver to reflect the diagnosis, the car nearly two years after each hot summer parking will be heard in the engine room liquid storage tank issued a “gurgling, grunt” sound, especially in the city long driving or parking long Time when the use of air conditioning failure is more prominent, but when driving on the highway when the coolant temperature gauge