Having troubles with High engine temps when towing? That Bull Bar restricting air flow?
This little mod may help.
By running a single wire from the thermo fan wiring through a switch to ground you can manually ramp up the fan RPM to give you extra cooling.
This should work for WJ/WG with the same type of fan assembly.
Here is a basic wiring diagram of what to do
There is an electrical connector at the bottom left (passenger side) of the radiator.
Solder a single wire onto the Brown & Violet wire (centre wire) then tape it up.
Run the wire into the cabin & connect to a single pole switch, I used a "Carling Style" rocker switch rated at 20 amps
Connect the wire front the fan to pin 2 (keeps it isolated)
Run a ground wire from any metal point under the dash to pin 3.
Don't use pin 7 to light up the switch, if you want it to light up use a 2 pole switch where the poles are separate.
