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一、桑塔纳轿车暖风效果微弱 故障现象: 打开暖风开关,风机运转正常,车在起动20min后,才有热风吹出,可是热量微弱,司机认为是时间短,水温没上来,随即用塑料薄膜遮挡散热器,一会儿冷却液水壶冒出大量水蒸气,发动机“开锅”了。检查暖风效果很好,可是,5min后温度逐渐降低了,只有微弱暖意。驾驶员反映:清晨起车,先无热风,一会儿大约半小时有热风,一切正常,再一会儿温度下降了,效果不好,反复多次都是这样。 拆下进水管,热水流动正常;拆下出水管,只有少量的水流动。故障明显,水管堵塞。接上高压水枪冲洗水箱管道,发现有水垢及一些黑
First, Santana weak warm air phenomenon: open the warm air switch, the fan is operating normally, the car started 20min after the hot air blowing, but the heat is weak, the driver believes that time is short, the water temperature did not come up, then covered with plastic film Radiator, while the coolant kettle emits a lot of water vapor, the engine “boil”. Check the heating effect is very good, however, 5min after the temperature gradually decreased, only a slight warmth. The driver said: early in the morning to start, no hot air, while about half an hour hot air, everything is normal, then the temperature dropped, the effect is not good, repeated many times. Remove the inlet pipe, hot water flow is normal; remove the outlet pipe, only a small amount of water flow. The fault is obvious, the water pipe is blocked. Connect high-pressure water tank rinse water pipe, found that there are some scale and black