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What control module are you using, and what does it do?


I'm using the hayden adjustable unit it seems OK. There are better options out there but this one is working alright for me. It has a probe you insert between the finns on the rad and is set to turn the fan on at 180 degrees. So basicly when the t-stat opens the fan turns on.

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From your diagram, the control module turns the fan on, and you're deciding with the 2-way switch whether it runs on high or low speed, correct?


Yes.

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(It seems like the control module should connect to the "Auto" terminal of the 3-way switch, right?)


And yes.

(aka suprathepeg, aka Sean)
89 v6 SWB truck "BLACK BEAUTY" EB valves, P&P head 30 over.
95 FZJ80. Lifted. locked and rollin on 33s (my dream machine)