问：加热问题

根据您所描述的内容，通常机械师会寻找有故障的水泵，故障的散热器盖，被堵塞或外部阻塞，散热器和/或非功能性的电冷却风扇。但是，您对温度量规操作不稳定的描述会引入复杂性。通常，当汽车过热时，它会过热。量规被埋在高侧，您希望操作员迅速关闭发动机，以免弯曲头部或块。但是，如果您看到温度的波动读数，它会增加被困的空气和/或可能的头部垫片泄漏的可能性。当然，您也可能有一个错误的量规或发送单元。如果有的话，您想首先清除空气系统。测试散热器盖（盖必须承受预设的压力）。没有被困的空气和良好的帽子，请进行泄漏测试。如果泄漏测试良好，请运行发动机，并查看温度将温度设置为热气的高温（如果加热表示水泵循环冷却液）时，是否会在乘客舱中连续加热。 If pump is circulating coolant, use infrared thermometer on upper and lower radiator hoses and radiator. If, via these temperature measurements, you determine that hot coolant is not flowing throughout the radiator, you may have a plugged radiator (you still have to test and evaluate the water pump further, though). A plugged radiator will easily cause overheating. If no faults are found at any stage, you have to evaluate the possibility of a head gasket leak, specifically exhaust gases leaking into the coolant, which will cause overheating. An on-site exam from a professional would probably obviate the need for some of these steps and consequently I would simply suggest scheduling an过热诊断由认证的技工。您不必担心太多。在这样的问题上，只要原因与泄漏的头部垫圈无关，一旦发现原因，这很有可能是相当平凡的维修。如果您有其他疑问或疑虑，请一定要告诉我们。