i've got an 05 silverado ss so it has e fans already i just want to wire a switch to turn the fans on. it sucks when im not using the a/c and i hit traffic and my temps start to go up or just idling in a parking lot eating some food. the other morning it was like 45 outside and i had to turn on the a/c just to build head pressure to kick the fans on. anyone done this? looking for a schematic or even better pictures of what wires to tap into.

thanks
Alan

 

It would be fairly easy to wire a relay to one of your fans, or 2 to 2 of them.
IMO,you should just wait til you get the dynotune for those headers, just set your fan temps to somewhere around 200-210. Then it will never heat up.