Yeah thats what I am thinking. But I am going to wait to get a amperage meter too to make sure that power is flowing to everwhere it needs to be. I will come back here when I get back to it. I may even write another DIY to contribute to the forums.

 

I might also try this. It is pretty close to mine except a couple of things.


http://www.aaroncake.net/rx-7/efaninstall.htm

 

Ok, I've installed a electric fan on my old mustang but I bought one of those kits to make it turn on. Here's the issue though, it came with a little probe that would sit behind the radiator and the air flowing through the radiator would cause the probe to turn on and off the relay to turn the fan on. Actually I setup the fan so it would turn on via a switch, A/C being on, and/or temp going above a certain amount. Also I had a light wired up, so that it would turn on when the fan was on so I knew it was running. It was a wiring mess but it allowed ultimate control and less worries. Anyway, since the A/C condensor is seperate it takes a lot of worries away from the fan not turning on.

So back on topic, how is everyone wiring the sensor to come on? I see from the picture that they are wiring it to the thermostat. How is this possible since that is mechanical and not a sensor. I though of going the orginal route of the probe sitting behind the radiator, but that usually works only when the truck is moving and only turns on stationary when sitting for a long period of time for the heat from the radiator to radiate out. If there is another way to wire it up that is easier and more accurate please let me know. Also I was thinking about putting the probe in the upper or lower radiator hose but afraid of it break off and hindering water flow movement. They also sell threaded sensors but I haven't looked to see if there is an extra hole to screw into.

 

........I don't know matey but for thread completion purposes please don't thread jack me......I plan on coming back here in a few days to post my conclusions according to the info I was able to obtain. That way if someone searcing the forum or interwebz has a similar problem the could resolve it. Thanks

 

Didn't mean to thread jack, but I think asking how the sensor is hooked up is a valid question since you didn't state above how you wired it up, but just that you followed something similar to the picture that was provided.

 

What kind of sensor do you have?

 

I haven't bought one yet, because I'm not sure what would be the best to hook-up. I've been looking at those kits that you can pick-up at O'Reilys but they have different kits for the hook-up: Probe, screw-in, Push-In Probe. I'm guessing the push-in probe is the easiest one to use and since you stick it in the radiator it sort of eliminates the need to be moving.

 

The push in type probe came with my Blackmagic Extreme and no problems yet.

 

I like the stick in probe since I am not going for anything overly fancy.

On my switch it was on a metal wire about 2 feet long already connected to the switch. It works.

 

The push in type is what was on the hayden controller I bought, you put it in the top right of the radiator (facing the front of the truck) by the big hose where the hot coolant comes from the engine into the radiator.

WWJD keep us updated w/ the install and let us know if you run into any more issues. From the newer wiring diagram you posted the only difference seems to be 85 on the relay is no longer connected to the ground wire but instead connects to ignition switched wire.