I have a manual fan switch on my car and want it to kick on automatically again (The previous owner did this). Can anyone get me a wiring diagram or describe how and where the wiring is ran...Thanks!!

 

it'll depend on how he hacked the wiring to put the fan in.


with the stock setup, the relay only needs a ground to turn on the fans... if you're lucky, he just has that switch hooked to ground.

if thats the case, you can put in any thermal switch... stock location is in the passenger side head.
when the switch gets warm enough, it grounds itself to the block... that should flip the relay and turn on the fan.