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dual 12v. cooling fans

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Old Oct 18, 2011 | 10:15 PM
  #1  
chaseg's Avatar
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From: harlingen tx RGV
Year: 1998
Model: Cherokee
Engine: 4.0L
Default dual 12v. cooling fans

Factory fan took a **** so i bought an ebay special 2 12" electric fans 1550 cfm replaced factory just cut connector off old fan spliced in on boom new fan going to pull of the mechanical fan and replace it with the other fan I live south Texas where its always hot as **** so im going wire it so as soon as I hit the key fan turns on
Attached Thumbnails dual 12v.  cooling fans-forumrunner_20111018_221512.jpg  
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Old Oct 19, 2011 | 01:37 AM
  #2  
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From: Grand Rapids MI
Year: 1998
Model: Cherokee
Engine: 4.0
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Looks good
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Old Oct 19, 2011 | 05:58 AM
  #3  
notop46's Avatar
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From: Charleston, SC
Year: 1990 - 2000
Model: Cherokee
Engine: 4.0
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I suggest you wire it up like the stock or through some kind of temperature sensor. Winter is comming and it still gets cold in Texas as I recall.

If you wire it up to the ignition, you will be wasting gas and putting more wear on your engine.

The fan will pull power all the time putting more load on your alternator/engine.

It will also take longer to reach proper operating temperature, so you will run longer with wider clearances (accelerated wear of bearings) and the ECU will send additional gas to the injectors for a longer time because the engine is cold.

If you want to wire in an override switch so you know it runs when you want it to, then do that.
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Old Oct 19, 2011 | 07:02 PM
  #4  
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From: Southern CA
Year: 1996
Model: Cherokee
Engine: 4.0
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Looks pretty sweet.
How good are those eBay fans? I'm always temped to buy some when I see them. What kind of temps are you getting??
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Old Oct 19, 2011 | 07:35 PM
  #5  
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From: somewhere Gee oh Dee cant find me...
Year: 1995
Model: Cherokee
Engine: I6 4.0L
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^^better off going to a JY and getting a ford taurus fan for like $35
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Old Oct 19, 2011 | 10:19 PM
  #6  
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From: Southern CA
Year: 1996
Model: Cherokee
Engine: 4.0
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Thanks JeepJunky.
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Old Oct 20, 2011 | 11:31 AM
  #7  
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From: Florida
Year: 1988
Model: Comanche
Engine: 4.0
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Originally Posted by Jeepjunky
^^better off going to a JY and getting a ford taurus fan for like $35
From what year taurus?

Sorry for the thread jack.
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Old Oct 20, 2011 | 11:38 AM
  #8  
Gee oh Dee's Avatar
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From: Milwaukee, WI
Year: 1987
Engine: Check
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IIRC they are pretty cheap from Advance Auto.
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Old Oct 20, 2011 | 11:53 AM
  #9  
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From: somewhere Gee oh Dee cant find me...
Year: 1995
Model: Cherokee
Engine: I6 4.0L
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Originally Posted by harleys
From what year taurus?

Sorry for the thread jack.
90-95 i believe, i think it needs a 3.8L v6
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Old Nov 17, 2011 | 10:56 PM
  #10  
preppye's Avatar
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From: Punta Cana , Dominican Republic.
Year: 1988
Model: Cherokee
Engine: 4d56td
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i really dont recommend you take out the mecanical fan ,i already did and its a huge headache, at least for me, i have dual electric fans and there is always a mess up, when is not the relay that burns is a wire that melts , if not that is that the fan gets damaged , the other day was the fan blades that broke on center bolt , and after replace , then they started rubbing , i took them off , put them back again and after few hours on street the rubbing again and have to stop on some street to get dirty to settle them again somehow until get home , hate them i swear i do but cant get fan clutch again , so thats my personal experience....
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Old Nov 18, 2011 | 06:47 PM
  #11  
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From: CT.
Year: 88
Model: Comanche (MJ)
Engine: 4.0 HO
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I run a high speed fan and the stock mechanical. I aways figured if the alternator ever took a dump I'd still have the other to get me someplace safe for a short period.
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Old Nov 18, 2011 | 07:32 PM
  #12  
chaseg's Avatar
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From: harlingen tx RGV
Year: 1998
Model: Cherokee
Engine: 4.0L
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That's what I also ended up running as well does good
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Old Nov 19, 2011 | 04:32 AM
  #13  
tavish_g's Avatar
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From: Tell City, IN
Year: 2001
Model: Cherokee
Engine: 4.0
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Originally Posted by preppye
i really dont recommend you take out the mecanical fan ,i already did and its a huge headache, at least for me, i have dual electric fans and there is always a mess up, when is not the relay that burns is a wire that melts , if not that is that the fan gets damaged , the other day was the fan blades that broke on center bolt , and after replace , then they started rubbing , i took them off , put them back again and after few hours on street the rubbing again and have to stop on some street to get dirty to settle them again somehow until get home , hate them i swear i do but cant get fan clutch again , so thats my personal experience....
Sounds like your pulling too many amps for your wiring's capability. I ran dual fans in my camaro, firebird, and trans am. I had the same two fans with the same engine in all three cars, the fans were wired up with 10 AWG, and i had dual 30 amp relay's running them. Those fans ran perfect, and they were cheapies from vato zone.
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