[Grease Monkey]

Question for the guys that run electric fans, the extra temp sensor they make you install, how does it differ from the temp sensor for the temp gauge in the dash? couldn't you skip that part and just hook it up to that one? I have a hard time believing the resistance values between the two will be any different.

 

[XterraD4u]

X2, I was curious of the same thing, unless it will interfere with the readout

Wait, what am I thinking, the one for the gauge isnt a switch, so it couldnt turn on anything...duh...lol!

 

[legend869]

Ya but you do have the actual thermostat next to the dash thermostat. Its a single prong so have to ground a two lead wire elsewhere.

 

[RacerXXL]

You would need to find a controller that will work with an OEM temp sender. In my case I have no "controller" I have a temp switch that opens at 170F and closes at 190 F, IIRC, sending a ground signal to a relay to turn the fan on/off. Simple system and frankly I hate the controllers they fail in my experience. In my system if my sender fails I still have complete manual control of the fan via a switch that is on/off/auto modes. If the sender fails I just flip it to manual on and let it run.

My sender installed in a bung welded into the cooling coupling tube shown at lower left in pic.

 

[TBass]

The main reason you can't do it is running a spliced parallel feed to a sensor will Check Engine Light you immediately.
Maybe if you designed a diode circuit, you could do it. But, it is so much easier to get a cheap aluminum hose insert of eBay, drill and tap it to the pickup unit designed for the electrical fan controller.

 

[TBass]

FYI, I still have the coolest looking electric fan setup in any Xterra by far, and I made it myself

 

[legend869]

Jeez tj I've looked all over for pics of a setup like that lol. I haven't hooked up mine due to fan mounting issues.

 

[TBass]

You would need to find a controller that will work with an OEM temp sender. In my case I have no "controller" I have a temp switch that opens at 170F and closes at 190 F, IIRC, sending a ground signal to a relay to turn the fan on/off. Simple system and frankly I hate the controllers they fail in my experience. In my system if my sender fails I still have complete manual control of the fan via a switch that is on/off/auto modes. If the sender fails I just flip it to manual on and let it run.

My sender installed in a bung welded into the cooling coupling tube shown at lower left in pic.

I'm curious, why did you put your temp probe on the cool end/bottom hose?
Everything I researched says it goes on the hot side coming out of the engine, the upper radiator hose.:nerd:

 

[RacerXXL]

I'm curious, why did you put your temp probe on the cool end/bottom hose?
Everything I researched says it goes on the hot side coming out of the engine, the upper radiator hose.:nerd:

Not my design it's a kit. My truck runs at 175 degrees, sitting on the side of a trail, idling with the AC running, in 90+ degree Bama heat with matching humidity. So it seems to work really well temp never fluctuates and it will not overheat no matter how long it sits. Winter time it warms up quickly comes up to 175 and stays there.

 

[XterraD4u]

I'm curious, why did you put your temp probe on the cool end/bottom hose?
Everything I researched says it goes on the hot side coming out of the engine, the upper radiator hose.:nerd:

The guy who makes it probably uses a lower temp switch so that it compensates...idk, but it sounds good

Darin
01 Xterra SE 4x4
COMING SOON:
PML, EFan, stock intake mod, shocks, a bunch of maintenance, and a tune up