Topic: Electric Fan Installation

[YJake]

(Decided to just add to this thread than start another  )

I just got my Taurus fan a few days ago and it looks like it'll bolt right up. The only issue is that I'm not quite sure how to wire it correctly.

I read Jeffy's post in the FAQ but he only uses the low speed and no thermastat. I plan to run mine that way at first as well (until I upgrade my Alt.) but does anybody have a chart showing a thermastat controlling both speeds as well as what relays/guage wire/fuses are needed?

I can't wait to get started on this project and free up some power!

[Jeffy]

The thermostat would go on the power side of the harness between the fan and the relay.  You don't need additional relays.

[BarneyJeep]

3.0 Probe Fan: Freebie
FK35: $150
Kill switch: $3
lil bit of wire: ~
fuse block that i was buying anyway: ~

have the FK35 set to -22 deg and it sits rock solid 210 deg, never above

[YJake]

Well I tested my fan and it works great. Didn't test the Hi-Power but I'm sure it works too.

Jeffy, where is the ignition wire you spliced into? I'm having trouble finding it in the Haynes manual electrical schematics. Or did you just take apart the steering column and wire it to the ignition directly?

[Jeffy]

Well I tested my fan and it works great. Didn't test the Hi-Power but I'm sure it works too.

Jeffy, where is the ignition wire you spliced into? I'm having trouble finding it in the Haynes manual electrical schematics. Or did you just take apart the steering column and wire it to the ignition directly?

I use a fuse tap since the 12v source is low amps.

[YJake]

I use a fuse tap since the 12v source is low amps.

Explain please? 

[chardrc]

i used the 12v going to the cigar lighter since it goes on when ignition is on and was close to where i put my switch. this is on a 1990yj but i don't think they would have changed when power goes to the lighter or not.

[YJake]

It's 3:24AM but the fan swap is all completed!

I took the YJ for a drive around the block and WOW! That Taurus fan swap with the 4.0TB I just added a few days ago made one hell of an improvement on my low end torque!

It almost makes me want to try the mustang injectors next.

[YJmechanic]

see what happens when you start trying the cheap junk yard power adders,  you cant stop

[jdarg]

i used the 12v going to the cigar lighter since it goes on when ignition is on and was close to where i put my switch. this is on a 1990yj but i don't think they would have changed when power goes to the lighter or not.

You can get switched 12v under the hood off the relay socket near the battery tray. that relay is for the auto trans lockup. the socket is empty on manuals so its even easier...just plug a male terminal end into the right hole for switched 12v. this was the easiest source of switched 12v under the hood i could find after studying the fsm wiring diagrams for about half an hour.

[sharpxmen]

You can get switched 12v under the hood off the relay socket near the battery tray. that relay is for the auto trans lockup. the socket is empty on manuals so its even easier...just plug a male terminal end into the right hole for switched 12v. this was the easiest source of switched 12v under the hood i could find after studying the fsm wiring diagrams for about half an hour.

pretty good tip  - i guess you could also use a relay in there if you need more amps (never looked at it but now that you mentioned it i might use it for my electric fan)

[YJake]

I'll be adding a kill switch for the fan in the next few days for water crossings.

Here's a couple pics of the finished product.

Used a 60amp relay and 12guage wire for the power. Silver marked wire is spliced into the ingnition switch to activate fan.



Here's the engine bay now. Lots of extra room to work on stuff! That was alost worth it by itself. I bent some galvanized steel into L brackets to mount the fan to the radiator. It was a direct swap, just clamped it where I wanted it and screwed it on.

[jfrabat]

I would advise to get some wire covers for the wires.  They can prevent the wire from shaffing and shorting out...  Plus, it just looks neater!

[smashcoast]

Is the shroud needed after the swap?

With it i imagine the temp would be lower?

[jfrabat]

Is the shroud needed after the swap?

With it i imagine the temp would be lower?

You still need a shroud, but not the stock one.  I used the Ford one in mine.  As for the temp, it should actually be the same (around 200~210*), but it will not go higher as can happen with the mechanical fan when at slow speeds.