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Unread 03-27-2008, 07:58 AM   #46
HighLonesome
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Speaking from years of experience playing with electric fans in the hot desert, I think the fan should come on LOW pretty quick, around 180-190, and stay on continuously unless you are out on the freeway. Otherwise there is no air moving in the engine bay and everything gets real hot. If you think about it, a clutch fan turns all the time. It takes a lot adjusting to get the thermoswitch set just right so the fan turns off at freeway speeds and stays on around town and out wheeling.

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Unread 03-27-2008, 12:16 PM   #47
DTrem08
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So your saying I should just have it on low all the time and maybe turn it off manually when the cars just warming up?
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Unread 03-27-2008, 12:40 PM   #48
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Quote:
Originally Posted by DTrem08 View Post
So your saying I should just have it on low all the time and maybe turn it off manually when the cars just warming up?
I'm saying have it come on Low early and stay on most of the time because ZJ engine bays are ovens. Having the I6 isn't as bad as the V8.
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Unread 03-27-2008, 12:42 PM   #49
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Quote:
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So your saying I should just have it on low all the time and maybe turn it off manually when the cars just warming up?
Definitely not!

You WILL forget to turn it on at some point!!!

Use a thermostatic switch for low, and set it at around 160* (mine is set to come on at 90* but mine heats up VERY fast) High and off are the only "manual" switch settings.
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Unread 03-27-2008, 12:53 PM   #50
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OK, but where do I get this switch and how do I wire it up??

Heres the picture for the other question, its a MS paint reproduction of what the top of the relay says, my camera wouldn't take a clear enough picture

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Unread 03-27-2008, 01:03 PM   #51
Jeepfreak81
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If it helps, here is a write up I did on my Taurus fan install. Shows the switch I used with the NAPA part number.

http://www.jeepforum.com/forum/f12/taurus-fan-install-312027/
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Unread 03-27-2008, 03:35 PM   #52
DTrem08
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I might have missed it, but the only two part numbers I found were for the switch in the cab and the 75 amp relay
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**LOOKING FOR MY JEEP, LAST SEEN IN CT and CURRENTLY HAS CT PLATES
White 1996 Grand Cherokee Laredo, I6 4.0 20% tint all around
**KOR Radiator Support, IRO 3.5" lift, 31/10.5/15" Maxxis Bighorns on 15x8 Cragar Soft 8's, JKS Bar Pin Eliminators, KOR Light Bar, 4 Black KC HiLites, Flowmaster Super 44 with turndown/no tailpipe, OME Steering Stabilizer, Black KOR square rock sliders
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Unread 03-27-2008, 04:17 PM   #53
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Quote:
Originally Posted by DTrem08 View Post
I might have missed it, but the only two part numbers I found were for the switch in the cab and the 75 amp relay
Which switch are you looking for? The thermostatic one?

Advance Auto Parts
Hayden Fan Control Kit
Part Number: 3647

Or

Hayden Fan Control
Part Number: 3651

You can use others.... but those are available off the shelf.
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Unread 03-27-2008, 04:26 PM   #54
DTrem08
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Ok, Ill see if I can pick one of those up

anybody know anything about wiring up that relay with the diagram above?
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White 1996 Grand Cherokee Laredo, I6 4.0 20% tint all around
**KOR Radiator Support, IRO 3.5" lift, 31/10.5/15" Maxxis Bighorns on 15x8 Cragar Soft 8's, JKS Bar Pin Eliminators, KOR Light Bar, 4 Black KC HiLites, Flowmaster Super 44 with turndown/no tailpipe, OME Steering Stabilizer, Black KOR square rock sliders
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Unread 03-27-2008, 04:29 PM   #55
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Originally Posted by DTrem08 View Post
Ok, Ill see if I can pick one of those up

anybody know anything about wiring up that relay with the diagram above?
yeah, are you gonna use a temp sender to turn it on or a switch?
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Unread 03-27-2008, 04:36 PM   #56
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Couple of my writeups

http://www.jeepforum.com/forum/showt...highlight=ford

http://www.jeepforum.com/forum/f13/ford-3-8-efan-project-begins-355400/

One thing I will say is if you do the efan wrong, you can overheat and ruin your motor...so the project is nothing to sneeze at.
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Unread 03-27-2008, 06:08 PM   #57
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Quote:
Originally Posted by BradMB2004 View Post
yeah, are you gonna use a temp sender to turn it on or a switch?
Im just going to have it so its always on low with a manual override for high
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**LOOKING FOR MY JEEP, LAST SEEN IN CT and CURRENTLY HAS CT PLATES
White 1996 Grand Cherokee Laredo, I6 4.0 20% tint all around
**KOR Radiator Support, IRO 3.5" lift, 31/10.5/15" Maxxis Bighorns on 15x8 Cragar Soft 8's, JKS Bar Pin Eliminators, KOR Light Bar, 4 Black KC HiLites, Flowmaster Super 44 with turndown/no tailpipe, OME Steering Stabilizer, Black KOR square rock sliders
**If youve seen it around CT or know about it, PM me
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Unread 03-28-2008, 04:30 AM   #58
DTrem08
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All I need now is a little help wiring up that relay and I should be good to go
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**LOOKING FOR MY JEEP, LAST SEEN IN CT and CURRENTLY HAS CT PLATES
White 1996 Grand Cherokee Laredo, I6 4.0 20% tint all around
**KOR Radiator Support, IRO 3.5" lift, 31/10.5/15" Maxxis Bighorns on 15x8 Cragar Soft 8's, JKS Bar Pin Eliminators, KOR Light Bar, 4 Black KC HiLites, Flowmaster Super 44 with turndown/no tailpipe, OME Steering Stabilizer, Black KOR square rock sliders
**If youve seen it around CT or know about it, PM me
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Unread 03-28-2008, 06:13 AM   #59
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Quote:
Originally Posted by DTrem08 View Post
Im just going to have it so its always on low with a manual override for high
If you use the thermostatic relay, you can use it on low all the time but the relay will power it on at a certain temp, the 3 way switch allows for a manual over ride to high

I wouldn't leave it on low all the time, you really should use the thermostatic switch controlled by the in cab three way switch, it moves enough air that your motor might never warm up properly, and a cold running motor is in efficient and can start burning out sensors (O2) and if you run your cat converter can ruin that too.
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Unread 03-28-2008, 12:08 PM   #60
DTrem08
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Ok I'll have to look into pickin up one of those hayden kits then
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**LOOKING FOR MY JEEP, LAST SEEN IN CT and CURRENTLY HAS CT PLATES
White 1996 Grand Cherokee Laredo, I6 4.0 20% tint all around
**KOR Radiator Support, IRO 3.5" lift, 31/10.5/15" Maxxis Bighorns on 15x8 Cragar Soft 8's, JKS Bar Pin Eliminators, KOR Light Bar, 4 Black KC HiLites, Flowmaster Super 44 with turndown/no tailpipe, OME Steering Stabilizer, Black KOR square rock sliders
**If youve seen it around CT or know about it, PM me
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