Originally Posted by tabetha
The mere FACT that the fan does NOT come on until it is UP to temperature, tells you it is NOT the fan switches sticking on.
Where are you measuring the HEAT at with your IR gun ?
The fans DO take a long time to go off once on if it is a very warm day, (not a problem in the uk!!).
Why not connect up a light so you know when the fans are actually on, the fan switches do go duff sometimes but very unlikely to be three in a row.
I think your heat gun(IR) is out also, so is misleading you, I bet if you leave it long enough it will turn the fans off.
tabetha
Hi Tabetha.
I have already a light fitted on the dash to see when the fan is on or off, even I have a switch to turn on and off manually the fan.
With the car stopped just idling, the fan starst when the temp goes up, but then it never stops.
I did a test yesterday and I waited about 20 minutes and the fan did not stop.
I changed the battery of the IR gun and I think it works well, as I aim to my hand and it shows 35 degrees.c . so it makes me think it works.
I take the temp very close of the fan swith, even on the own swith and while the fan is on, the temp goes down but the fan dont stop.
Now in Spain, summer is almost over, this week we are at 22 degrees and today we are 20 and it is raining. So it seems UK weather.
As you can se it is not easy to find a solution.
The radiator is new but, can it be operating bad?