Thank you Hard Way. It's amazing that such a thing was even needed! But now I have a new search term so maybe I can find parts and etc.
I would assume that this white device is the sensor? The PO must have rewired it to a dashboard switch because a wire, long since broken, leads through the firewall. In the second photo is a broken wire/ terminal under the intake - is this part of the device?
Thanks again. Google searching again with fresh terms.
So. 1978 Fj 40. Bone stock motor/carb still has smog equip etc. does have new radiator and hoses Carb fan will not come on. I have read ALL the threads and have done the following: 1 cleaned and inspected all connections from temp sensor to fan and all points in between 2 checked the in...