”Actually , If coolant level is OK and no obvious leaking sign, yet engine running die because of " over heating" code, logic conclusion is the sensor is bad , u even don't bother do any check .“
如果你車子的thermostat 失效,你看COOLANT LEVEL還是正常的,也沒漏,你的車子還是在過熱運行。你正常的SENSOR保護了你的車子,讓發動機保護性熄火。
所以你還要看看各處冷卻水的管道手摸上去是否正常熱度,不能隻看COOLANT LEVEL。