Just got home from driving the car and heard the coolent boiling. The temp guage was at 240*. Both of the electric fans were off. I have the passenger side fan working off a toggle and eliminated the switch it used to use in the passenger head. The second computer controlled fan, I have setup to come on at 175* and shut off at 165*. Is there a power relay to both fans and if so where is its location in a 89 Formula?

 

Im not sure of one running both fans. Umm I am assuming you checked your fuses. But the relay i am currently working with is oval and above the C100 on the drivers side firewall of the engine compartment. I hope this helps.