6.9 auxiliary fan test

[john erbe]

Any ideas on how to check if the auxiliary fan is coming on at the correct temperature?

 

[aussie 6.9]

Hi john. I think the fan should come on at 100c . It is controlled by a sensor in the thermostat housing.
I live in a part of the world where we often see temps well above 40c and I have fitted a 90c sensor so the fan comes on before things get too hot.
The temp gauge sensor is at the back of the right hand cylinder head so I think it can be reading a 100 and as it is not as hot at the front of the engine the fan may not come on till a bit higher reading is shown.
I have used a hand held temp gun to check that the fan is coming on when it should.
My car is Australian delivered and it came with a supplement to the instruction book saying that under extreme conditions that you may have to reduce speed to keep the temp with the limits.
Regards Mark.

 

[Oversize]

Here’s a ‘new’ guy that’s posted loads of videos that can help...

https://youtu.be/tq2NnjK9AK0

 

[c107]

Thanks, this guy has some good videos!