thank you very much. I'd have to oder it cause nobody has them. Do I install with arrow towards relay or arrow towards compressor with the diode.

 

Voltage flows only in the direction of the arrow, like a one way valve for electricity
So you would want it pointed at the thermostat and away from the Clutch

fan activation--------------|<--------------------AC clutch

So when the AC clutch gets 12volts from YOU turning on the AC the 12v goes to the fan and activates it

But when fan gets 12v for temp that 12v can't travel back to the AC clutch


The diode on between clutches 2 wires is to prevent a voltage spike when clutch is cycled on and off during normal operation
If you know how an ignition coil works you will understand why its needed
Ignition coil has a primary coil of wire that gets 12v and ground, this coil creates a magnetic field around the Secondary coil, when power is cut to Primary coil the Secondary coil release a 20,000volt spike to a spark plug

AC Clutch is a larger coil of wire that also creates a magnetic field when its on, that's how it engages the compressor and pulley
So when it cycles off.............it will generate a voltage spike(not 20,000volts, lol, but a spike none the less), that diode causes that spike to ground out

 

I’m new here I want to do an E fan Conversion on my 2002 ford ranger 3.0 is there any recommendations or forums that show how to do this step my step?

 

you don’t need a turbo sports car to want a performance boost by getting rid of the parasitic clutch fan. Even a little Ford Ranger can benefit from the extra couple of horsepower you will gain from going electric. If you are okay with driving a truck that is incapable of keeping up with modern vehicles, keep the mechanical fan. If you understand the importance of being able to quickly accelerate to avoid an accident or to pull out into traffic and quickly accelerate to match the speed of the oncoming vehicles, then you should understand that anything that you can do to stop parasitic losses is good. Also if you don’t know how to work on vehicle electrical systems, then you shouldn’t mess with it and let a pro handle any electrical work you need for your truck. Others like myself should be able to convert to electric with one hand behind their back because all you have to do is unscrew the fuse panel so you can add a circuit and screw it back together and put the right fuse in the slot and voila you have electric cooling fans.