tj electric fan setup

[tjrider]

I know a lot of you guys are running these, but I want to convert to an electric fan set up on the tj. I know I can piece something together cheaper than buying a "kit". But I don't know what all I need to make this happen. What switches and such do I need and what kind of fan should I run. I do have a 180 thermostat in now. Thanks guys

[superjeep]

Are you having it come on at a certian temp or off of a switch. I have mine on a switch so I can shut it off in deep water. my distributer is low on the engine. their is a bunch of ways to do it jegs has some good prices. If you get a bad fan (used junk yard fan) that works at first and goes out while you are out you are screwed. I had to find a junkyard and get a manual fan to throw back on the jeep to make it back to cincinnati after my electric fan locked up.


Shawn

[underpowered]

the ford taurus 3.8l fan is very popular for this kinda swap. they are 2 speed and have a very high CFM rating.

[tjrider]

I've been reading a lot about the taurus swap. I don't like deep water so probably no switch. I didn't know if anyone had used a fan from any local parts stores

[carwash]

Almost any fan is great, as long as there is a proper shroud. The taurus fan is the whippety **** for sure, especially if you pick up the offroad aftermarket switch/relay system.

But again, almost any fan, if shrouded correctly is good to go.

[Trigger]

I ran one out of Crown Vic that worked pretty well. Never had an issue with overheating.

[humpy]

Originally Posted by carwash

Almost any fan is great, as long as there is a proper shroud. The taurus fan is the whippety **** for sure, especially if you pick up the offroad aftermarket switch/relay system.

But again, almost any fan, if shrouded correctly is good to go.

X2 on the shroud... I have seen quite a few electric fan setups still let motor over heat because shroud wasn't up to par... It took me a while to realize thats why one o mine was overheating

[fmlewis]

I run the Taurus fan on my 258 CJ. It works great. There is a lot of trimming that you need to do to the shroud to make it fit but it is an awesome fan. You can pick them up all day at Pull and Pay for about $25 and they come out pretty easy, 2 bolts and its out.

It is a very tight fit.

As far as relays go I think I'm running a 40amp (may be bigger, I just made sure the wires running into the relay were at least 12ga) relay for high and a 20amp for low. Again I picked up a pretty sweet relay rail down there also with relays for dirt cheap down there. I even think the lady at the counter let me have it no cost. I believe it came from a buick or some gm vehicle.

I ran the fan for awhile on just a switch and it drained my battery fairly often, because I basically ran it full time. So I ran a thermostat from Advance and it works great.

You definitely want to consider upgrading the Alternator if you go with the Taurus fan. On high it will drain the battery in about 15min. I haven't upgraded yet but I plan to.

[tjrider]

I've read that the low speed is more than enough to cool a 4.0. I don't want to mess with a new alternator right now. So everyone just made a relay kit? I was hopin to just buy some kind of cheap off the shelf setup.

[fmlewis]

You can buy a relay kit pretty cheap but it won't come with a thermostat probably. Advance has a few relay kits but your better off buying a kir that can handle high or just make one in my opinion.

[itbrokeagain]

I have 2 electric fans from front wheel drive v8 caddys. They move lots and lots of air. $20 each

[tjrider]

A 2 fan set up, or 2 separate fans? How did you wire them up?

[cmartin]

I have the taurus setup on my 304 and low keeps it cool almost all the time. If i do use high it only takes a minute to bring it back down. Both high and low are switched on my cj

[tjrider]

My main concern is I'm not that good at creating an electrical system from scratch. I have no idea where to start wiring this thing up......:confused:

[Coppertop]

I purchased a electric fan relay kit from OREILYS a few years ago.The kit had everything you needed including the thermostat.The price was under 30.00 bucks.The taurus fan is a great choice.You should have no problem finding one at you-pull since there always at least twenty cars in the yard.

Nick

[cmartin]

http://www.ado13.com/techs/relay.htm

is the relay wiring diagram for the high speed relay. I used a 75 amp relay from ebay.

http://www.ebay.com/itm/BOSCH-TYCO-R...-/290499370197

A on off on heavy duty switch and a 20 amp relay from a parts store for the low speed. Both are wired from a switched 12 volt source. The hot side of the relay came from a power block i had from my tbi wiring harness. Get one while you are at the pull and pay. They are on all of the 90's chevy trucks. It made it look alot cleaner when the wiring was finished. Plus gave me a few more hot spots for other stuff

Im not a great person with diagrams but there is only 4 wires to deal with per relay. I did have a buddy that helped and once we got started it wasn't bad to do

[TomH]

Originally Posted by cmartin

...I used a 75 amp relay from ebay...

That's an HD Truck relay available at Freightliner, Peterbilt, etc. O'Reilly's can get them from their DC, but it's not really a stock item. I have one in the WTF-J and it provides peace of mind knowing that the relay won't cook when I need it most.

[cmartin]

Originally Posted by TomH

That's an HD Truck relay available at Freightliner, Peterbilt, etc. O'Reilly's can get them from their DC, but it's not really a stock item. I have one in the WTF-J and it provides peace of mind knowing that the relay won't cook when I need it most.

I went big on the relay and wire for that same reason

[cmartin]

Originally Posted by tjrider

My main concern is I'm not that good at creating an electrical system from scratch. I have no idea where to start wiring this thing up......:confused:

http://m.youtube.com/#/watch?desktop...4_wpRWsQ&gl=US

Saw this today. It seems easier to wire. Funny a taurus fan and volvo are the same

[tjrider]

Hopefully heading to the wonderful upull tomorrow. AKA: wheelers paradise... So I'm looking for a dodge ram alternator and either a volvo or tuarus fan?..... Might possibly snag an astro steering box for the future front stretch too

[tjrider]

Had to look through 10 tauruses to finally find a good fan I can use. It was the last one I think. Picked up a durango 160 alternator to for $20. Not a bad score. Even had it tested and it works! Double bonus

[tjrider]

Found a company out of texas that makes a wiring kit with a single sensor for $94. Minus a toggle. Not a bad deal I think, probably gonna order one

[Coppertop]

No luck finding anything local??

Nick

[tjrider]

Never really found any direct fit harnesses. This one basically a plug and play. Most of the ones around here are "universal", and this thing pulls some juice. So I don't want to be sitting on a trail with a burned up jeep

[jlynch]

This works I have done 4 like this.

Originally Posted by cmartin

http://www.ado13.com/techs/relay.htm

is the relay wiring diagram for the high speed relay. I used a 75 amp relay from ebay.

http://www.ebay.com/itm/BOSCH-TYCO-R...-/290499370197

A on off on heavy duty switch and a 20 amp relay from a parts store for the low speed. Both are wired from a switched 12 volt source. The hot side of the relay came from a power block i had from my tbi wiring harness. Get one while you are at the pull and pay. They are on all of the 90's chevy trucks. It made it look alot cleaner when the wiring was finished. Plus gave me a few more hot spots for other stuff

Im not a great person with diagrams but there is only 4 wires to deal with per relay. I did have a buddy that helped and once we got started it wasn't bad to do