Modified XJ Cherokee Tech XJ (84-01)
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Upgrading Cooling System

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Old Jul 29, 2012 | 02:52 PM
  #16  
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Originally Posted by freegdr
cooling system parts all in good shape i assume, exp clutch fan
Originally Posted by freegdr
stock radiator bennett grand cherokee fan clutch newer style xj aux fan ac on all day never a issue
^^this is the only guy making sensible suggestions
you don't need a bad *** set of electric fans. what you need is a new radiator if yours is shot. yes 2 row, not 3 row
a set of fans isn't going to fix your problem
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Old Jul 29, 2012 | 05:37 PM
  #17  
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Originally Posted by Atmos
^^this is the only guy making sensible suggestions
you don't need a bad *** set of electric fans. what you need is a new radiator if yours is shot. yes 2 row, not 3 row
a set of fans isn't going to fix your problem
i just put up my expirence since i changed my cooling system, a stock radiator is all that is needed, ive seen people over heat or see no changes at all with a 3 core for which ever reasons
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Old Jul 29, 2012 | 06:24 PM
  #18  
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Originally Posted by Atmos

^^this is the only guy making sensible suggestions
you don't need a bad *** set of electric fans. what you need is a new radiator if yours is shot. yes 2 row, not 3 row
a set of fans isn't going to fix your problem
Ok that's what I figured I'm gonna get the 2,core all metal one from radiator barn,should I do a flowkool water pump or is a stock replacement good enough?
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Old Jul 29, 2012 | 06:31 PM
  #19  
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good call. I have the same radiator. while you're replacing the rad, you should definitely throw in a new pump
if you're over heating with all new cooling parts then I'd check the heater core for a clog. check it and flush it when you're doing the rad
if you do decide to get a high flow pump (there are other brands besides flowkooler) don't forget to get a new high flow 195* tstat to go with it
it's up to you. I'd rather buy a zj fan clutch for $30 instead.
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Old Jul 29, 2012 | 07:39 PM
  #20  
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i forgot i also ground out the inside of my water neck taking out all sharp edges to make it flow easier along with a 195* mr gasket thermostat
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Old Jul 30, 2012 | 08:49 AM
  #21  
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Originally Posted by Atmos
good call. I have the same radiator. while you're replacing the rad, you should definitely throw in a new pump
if you're over heating with all new cooling parts then I'd check the heater core for a clog. check it and flush it when you're doing the rad
if you do decide to get a high flow pump (there are other brands besides flowkooler) don't forget to get a new high flow 195* tstat to go with it
it's up to you. I'd rather buy a zj fan clutch for $30 instead.
What's the difference of a zj fan clutch?
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Old Jul 30, 2012 | 08:59 AM
  #22  
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It moves alot more air through the rad and A/C condensor than a std XJ fan. As someone stated elsewhere a std ZJ fan clutch makes for a hvy duty XJ fan clutch. I just put one on mine (NAPA #272310). But along with the other things I did to the cooling system at the same time I may have gotten the same good results with a new XJ fan clutch but decided it couldn't hurt. You can definitely hear it but XJ's aren't exactly quiet so........
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Old Jul 30, 2012 | 09:06 AM
  #23  
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Ok so replace the whole assembly lol (fan+fan clutch) grand cherokees are everywhere here
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Old Jul 30, 2012 | 09:15 AM
  #24  
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I just used my XJ fan. I don't know what the ZJ fan looks like but if you go the ZJ fan/fan clutch route just watch for clearance problems. Your XJ fan is a direct bolt up to the ZJ fan clutch. Thing is you won't know if your getting a good or weak fan clutch if it's used and a new NAPA one,at least here,was only around $45. I couldn't locate a source online that wouldn't have cost me about the same with shipping.

One other thing is that there are hvy duty ZJ fan clutches. A std one is the same height as a XJ's but is a lot bigger in diameter. Make sure you get the right one if you go used.

Last edited by EZEARL; Jul 30, 2012 at 09:17 AM.
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Old Jul 30, 2012 | 09:16 AM
  #25  
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https://www.cherokeeforum.com/f67/up...diator-142290/

I just put in a 2 row radiator, and wired in a electric fan (ignition hot w/relay) and it runs 20* cooler
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Old Jul 30, 2012 | 06:24 PM
  #26  
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stock replacement radiator, wpump & tstat, dual electric fans from a chrysler 300, and it runs ~250, even when crawling thru mud on hot days. very happy with it.
a completely stock setup will work fine in any weather if the system is healthy, but its nice to be able to kill both fans before fording deep water.

that 3-fan setup looks F*&%^ng SWEET
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Old Jul 30, 2012 | 06:51 PM
  #27  
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Originally Posted by rompnXJ
stock replacement radiator, wpump & tstat, dual electric fans from a chrysler 300, and it runs ~250, even when crawling thru mud on hot days. very happy with it.
you run how hot???
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Old Jul 30, 2012 | 06:56 PM
  #28  
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Originally Posted by Atmos

you run how hot???
X2! 250 is crazy
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Old Jul 30, 2012 | 08:36 PM
  #29  
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whoops! that was supposed to be 205 lol

Last edited by rompnXJ; Jul 30, 2012 at 08:38 PM.
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Old Jul 31, 2012 | 08:51 AM
  #30  
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Originally Posted by rompnXJ
but its nice to be able to kill both fans before fording deep water.

that 3-fan setup looks F*&%^ng SWEET
Is that so it doesn't cover your motor in ****? Lol
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