moonrover

Test drive today. The new switch works as it should. Fan runs after engine runs a while and is warm up.

Thank you, aefron88. My ordered switch came today, and I installed it. Before I installed it, I extracted the coolant through top radiator with the pipe reach its bottom. Only about 200 cc came out, so when I removed old switch, almost no coolant came out from there. After I installed the new one, I poured back the extracted coolant through top of radiator. I'll test runs to see if fan runs when engine/coolant is hot enough ( I believe at least 75 C), and also if overheat happens due to air in the system and requires bleeding.

Mine is overheated/burned/melt at connection with its wire connector, parts are ordered to replace both them. This seems to be a common issue, and some of you already replaced it. I right now just connect the wires, so the fan runs all the time whenever the initiation is on, but it's better let fan runs as needed with a working temperature sensor/switch. Question: Does some coolant come out by removing the switch/sensor from radiator? Or, is the threaded hole all the way inside radiator? If the answer is yes, I want to drain or extract some coolant to make its level below the sensor before replacing it, so I don't make a mess with coolant spilled out Thank you.