How To Wire An Electric Radiator Fan with Thermostat And Ignition Off || Jeep Mods E46

Here we go over how we wired an electric fan with thermostat control that turns only runs with the ignition on. We are installing this because after we installed AC, we now have heat issues while not moving. Once driving down the road the heat issue will go away due to the airflow of movement, but this is not a good solution, especially on the trail.
Tools And Parts Used:
16 Inch Electric Radiator Cooling Fan Mounting Kit & 175-185 Degree Thermostat Relay Switch Kit Black: amzn.to/3k3ZIbX
Eaton Weatherhead 3750X6 Brass CA360 Fitting, Street Tee, 3/8" NPT Female x 3/8" NPT Male x 3/8" NPT Female: amzn.to/3yPPhAg
TICONN 200PCS Heat Shrink Butt Connectors Kit: amzn.to/3xAYTeL
Split Wire Loom Tubing Wire Conduit: amzn.to/3xwFs6Z
GS Power 14 AWG (True American Wire Gauge: amzn.to/2TVF5UQ
Milwaukee 18-Volt Drill and Impact Driver Kit: amzn.to/366BwxM
Husky Mechanics Tool Set: amzn.to/3kuGUzD
Wiring Diagram For This Electric Fan Install: www.chrisdoeswhat.com/wp-cont...
We did not install an electric fan for more HP, Torque, or better MPG, but we did see improvements even if sight both with the New AC on and off. We didn't Dyno the jeep, but the in the seat acceleration from a stop had a noticeable difference with our little 2.5L Jeep engine. The MPG just with the little driving we have been doing has improved about one MPG, with fuel prices right now every little bit helps.
The fan is not the only thing we have done to this Jeep, we have a lot of KZbin projects, so your results may vary from ours. We did the greatest performance gain project on this Jeep was the gear change going to 4:88 from 4:10. We have also replaced every senor, filter, plug, etc in KZbin videos making this little jeep run great.
Jeep Playlist:
Jeep Dana 30 & 35 Ring And Pinion Change 4.10 to 4.88 • Jeep Dana 30 & 35 Ring...
Jeep Wrangler YJ Modifications And Repairs • Jeep Wrangler YJ Modif...
00:00 How To Wire An Electric Radiator Fan with Thermostat And Ignition Off
03:50 Removing A Radiator To Install Aftermarket Electric Fan
08:43 How To Mount Electric Aftermarket Fan To Radiator
11:51 Install Additional Temperature Switch And Wiring In Relay and Fuses For Electric Fan
15:36 How To Use JB Weld, We Use It To Fix Radiator Mounts
16:14 Install Radiator With Aftermarket Electric Fan Mounted To It
17:09 Going Over Aftermarket Electric Fan Wiring After Its All Run
18:27 Testing Our Newly Installed Electric Aftermarket Fan With Temperature Switch
20:03 Cleaned Up Wiring For Electric Fan Install On Jeep YJ
20:43 Finally Thoughts Of Jeep Project
23:17 Outtakes How To Wire An Electric Radiator Fan with Thermostat And Ignition Off
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[@reneeredding754]

I know Brandon is a cool cat now. Looking so nice 🤩 That is my grandson so Proud

[@ChrisDoesWhat]

We have a few more issues to work through, just not cooling. Think a jeep cost more to keep running than a boat. Love you Mom.

[@jamesdavis3250]

Very helpful video! Thank you for posting!

[@ChrisDoesWhat]

@@jamesdavis3250 glad it helped.

[@ChristianGuco]

THANKS!!! especially for the diagram 14:25 , very helpful

[@ChrisDoesWhat]

We are glad this helped.

[@timmcinnis3505]

You guys are the best

[@ChrisDoesWhat]

Thank You

[@TangoBravo-SF]

Where did you find the temp sensor brass block? Part number?

[@ChrisDoesWhat]

Here is the exact connect I used for this. amzn.to/3yPPhAg

[@justincisson4702]

I’m looking to do a similar installation on an 88 Yj and it looks like the sensors gonna go where yours did Is yours the 3/8 or 1/2 coupling

[@ChrisDoesWhat]

@@justincisson4702 This really did improve the cooling. All the parts we used are in the description. Eaton Weatherhead 3750X6 Brass CA360 Fitting, Street Tee, 3/8" NPT Female x 3/8" NPT Male x 3/8" NPT Female: amzn.to/3yPPhAg

[@joshuamerrill2422]

What’s that elbow piece you used to add both the temperature sensors

[@ChrisDoesWhat]

Here is the link for it. amzn.to/3yPPhAg All the parts used are in the description.

[@jamesdavis3250]

That was only a 3/8 fitting?

[@johnmccool7551]

Open peacock and drain before work

[@ChrisDoesWhat]

Good advice. On this jeep it is stripped so we have to remove the bottom hose.

[@riffraffchoppers]

ey man so quick question. I found an ignition source in my fuse box so have power to the relay. My problem now is the fan won’t kick in at temp. I’m running my sensor in the top radiator hose(tried bottom too) with an adapter the hose connects to with a bung for the sensor. I kept my stock sensor in the thermostat so that my gauge would still work too. I also ran a toggle to the inside cab incase sensor goes out. I’m running a 165 thermostat with 185 sensors. When my gauge shows 210 the fan still hasn’t kicked on. But works fine with the toggle. I bought a new sensor thinking that and tested it and didn’t kick on either. I can’t figure out why. I don’t think my gauge is off because the hoses feel hot to the touch and radiator steams a little. Any ideas ?

[@ChrisDoesWhat]

So the heat sensor is a switch on your negative power, that engages the relay, your positive should be constant. Sounds like a wiring issue. I created a wiring diagram on our website the link is in this video description.

[@riffraffchoppers]

@@ChrisDoesWhat I have it wired same as you do. Iv gone over the wiring 5 times it’s wired right. I even have a toggle set up inside the cab and that wire is connected in with the black wire off the relay going to the sensor

[@riffraffchoppers]

@@ChrisDoesWhat I could send you a video of how it’s wired

[@ChrisDoesWhat]

@@riffraffchoppers should send a video link.

[@riffraffchoppers]

@@ChrisDoesWhatyou have a email?

[@riffraffchoppers]

Did you ever have any issues with that sensor adapter you used ?

[@ChrisDoesWhat]

Not an issue, still works fine in the jeep.

[@riffraffchoppers]

@@ChrisDoesWhatok. That’s a lot simpler than the inline adapter I was gonna use. Wish I woulda saw this earlier ha

[@riffraffchoppers]

@@ChrisDoesWhathow did you get both sensors in mine hit each other inside the adapter t fittinv

[@jamesdavis3250]

​@riffraffchoppers @ChrisDoesWhat I'm having the same issue, I have the same question. They both need to tighten down further otherwise they leak. When I tightened it down far enough to stop the leak I bent the hell out of the probe. Did you use a shorter temp probe?

[@riffraffchoppers]

@@jamesdavis3250 ya man I did the online sensor up on the top hose that was better. I think they have smaller switches with stubby probes not that rounder longer one but I don’t think that will work either I don’t know how this guy got that done unless he mashed his too or used some kind of sealant you could maybe use high temp rtv silicone if you really don’t wanna use the inline adapter but it’s super easy to install and wire

[@riffraffchoppers]

So what wire did you run the white too? No one ever explains that

[@ChrisDoesWhat]

You run that to a power source that turns on with the key.

[@riffraffchoppers]

@@ChrisDoesWhat I know that but no ever explains what that wire is or which wire it is. That’s the hardest part to find and the part no one ever gives an example of

[@jamesdavis3250]

I had the same question. I wound up running mine into the fuse panel in the glove box and used a piggy back fuse tap. Spent 3 days trying to find a demo video of someone splicing into the ignition on wire.

[@ChrisDoesWhat]

Sorry I messed your comment, like @jamesdavis3250 said, just run it to the fuse box. We did it like that here.

[@riffraffchoppers]

@@jamesdavis3250 ya man I did the same thing I ran a wire to the glove box fuse for the radio with a splitter. And ran a toggle inside too to turn it on whenever I want

[@riffraffchoppers]

Hooking the white to your battery is a mistake

[@ChrisDoesWhat]

What are you talking about? The white wire goes to the ignition l even made a wire diagram. www.chrisdoeswhat.com/how-to-wire-an-electric-radiator-fan-with-thermostat-and-ignition-off/

[@riffraffchoppers]

@@ChrisDoesWhat I commented before I got to the later part of your video

[@ChrisDoesWhat]

Good deal, may have been testing at that point.