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  #1  
Old 03-21-2010, 09:54 PM
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WJ cooling swap!

I have a 99 wj 4.0L I6 and my sister has a 2001 WJ 4.0L I6 and she has this huge metal fan coming from her engine (attached to the water pump pulley or whatever) witch is ALWAYS on and pushing crazy amounts of air. Is there a way to get this fan for mine and just bolt it on in the same spot? It looks like the same spot on mine (water pump pulley or whatever) is already threaded to accept something. Would I just have to find the fan used and bolt it on? Any issues with that? Anyone know where to find the fan itself online? Thanks for the help again guys in my time of bordness haha!

~Kyle~
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Old 03-21-2010, 10:21 PM
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Re: WJ cooling swap!

Yeap its a regular old fan clutch and assembly that you can pick up as an aftermarket accessory or from the dealer. Its a pretty easy install from what i have seen on other forums. My 4.7L has one already otherwise its something i would put on if i didn't have it.
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Old 03-21-2010, 11:09 PM
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Re: WJ cooling swap!

Can you provide me with any links? I can not seem to find this fan anywhere...and the only guide I saw seemed a bit complicated and wasn't even for the fan connected to the engine that I want.
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Old 03-22-2010, 10:02 AM
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Re: WJ cooling swap!

quick question!! im not to familiar with the 4.0L Do you have electric fan now? if so i think i would stick with the electric fan over the clutch fan setup, the clutch fan will take power from your mototr to turn tha big mofo. you will notice the diffrence prolly in the gas mileage too. is there something wrong with your current setup>>>?
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Old 03-22-2010, 06:45 PM
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Re: WJ cooling swap!

On the WJ's, the fan relay blowing from the E-fan operation is a common problem and is a PITA if you have to replace it. Here is a link to a thread from another site that should be what you are looking for. http://www.jeepsunlimited.com/forums...d.php?t=496635 Go with all genuine MOPAR parts on this one, they really should not be that expensive. A good quality fan clutch will not rob a lot of power at all from the motor to run. Infact, you probably wont even notice any differences with one or without. This will keep the engine cooler if you need to or just want to do this as an upgrade.
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Old 03-22-2010, 06:52 PM
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Re: WJ cooling swap!

Quote:
A good fan clutch will not rob a lot of power from the motor to run. Infact, you probably wont even notice any differences with one or without.
You are using more of your motor to turn that big fan it will use up some of your power, I know from experience my 87 bmw with a inline 6 and had a clutch fan on it. i took that clutch fan off and replaced it with a electric unit. i got better mileage and i had a snappyer rev and a bit more power. i just never saw people go from electric to clutch fan's. what's the point?
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Old 03-22-2010, 07:16 PM
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Re: WJ cooling swap!

Maybe the "probably wont even notice any differences with one or without" is more of a misnomer if anything the way i said it. However with the mechanical fans i have seen lately, on my Jeep for that matter, being viscous rather than a direct drive. In the case of the viscous, the clutch will not engage until necessary. I would assume that it would use less power then that of an older direct drive system. But yes, i would not say you are totally wrong.
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Old 03-23-2010, 01:16 AM
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Re: WJ cooling swap!

I have the electric fan that is standard on the 99-00 WJs. My sister, who has the 2001 WJ has the fan i have on the radiator, and then another fan (big metal fan) attached to the engine on the center pulley (water pump?) It is ALWAYS running and blowing TONS of cold air around. I WANT that setup. If it is on the same model but newer year then it should not be that big of a difference in power and gas mileage. I am just wanting to know if I just need to buy the fan she has and screw it on....the part on mine is already threaded so....
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Old 03-23-2010, 01:21 AM
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Re: WJ cooling swap!

Quote:
Originally Posted by mjl2610 View Post
On the WJ's, the fan relay blowing from the E-fan operation is a common problem and is a PITA if you have to replace it. Here is a link to a thread from another site that should be what you are looking for. http://www.jeepsunlimited.com/forums...d.php?t=496635 Go with all genuine MOPAR parts on this one, they really should not be that expensive. A good quality fan clutch will not rob a lot of power at all from the motor to run. Infact, you probably wont even notice any differences with one or without. This will keep the engine cooler if you need to or just want to do this as an upgrade.

This is EXACTLY what I was looking for! Thank you so much, now if I can just find the parts somewhere!!!
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Old 03-23-2010, 10:56 AM
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Re: WJ cooling swap!

yea man you should be able to directly bolt it up, it is your water pump it conects too.


here is a great spot to get oem parts. type in your year or whatever year you want and go from there. its 120 for the new clutch btw.

good luck hope the sites help yea need more help finding the parts let me know ill search around for ya.
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Old 03-23-2010, 11:31 AM
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Re: WJ cooling swap!

Would I be able to buy a fan clutch from like autozone or advance auto? Like this...
http://shop.advanceautoparts.com/web...S_882421513___
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Old 03-23-2010, 11:51 AM
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Re: WJ cooling swap!

Hey bro I just was looking online for you and found this place thats looks like it gas all you need for a decent price check it out.


http://www.autopartswarehouse.com/se...tt=99+jeep+fan
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