Why is my Radiator Fan Always on?

Why is my car radiator fan always on, and how to fix it. Please like and follow for more content!

Transcript

00:00Hi everyone just a quick video on why your radiator fan is constantly on. So we come

00:06around here to this side of the engine bay if you look at the far corner over

00:09there you'll see the radiator fan that is in that corner and it's not on at the moment so

00:15if I unplug this connector here what you'll see is the fan has turned on over there and if I plug

00:22it back in what you'll see is that fan stops again. So that plug because I know this car quite

00:29well actually leads to this sensor down here so that little sensor there is the engine temperature

00:37sensor so when I unplug the engine temperature sensor the ECU doesn't know whether the car is

00:43hot or cold so it's better that the fan turns on it's better the car to run cold and inefficient on

00:48fuel than it is for the car to run too hot overheat and probably blow your head gasket. So if your fan

00:56is constantly on at all times whether your car is cold or warm then you're most likely 99% of the

01:03time just like your engine temperature sensor has gone down. Most of them on a car are not too difficult

01:09to change if you buy another one you can normally just unplug it and swap it over really quickly

01:14without even draining the coolant off so if that's a symptom then you're almost certainly going to have

01:20a dead engine temperature sensor. Hope that helps. See you next time.