Cooling problem - Page 2 - JeepForum.com
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post #16 of 21 Old 07-15-2013, 05:06 PM
pyre24
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2000 WJ 
 
Join Date: Jan 2013
Location: sterling
Posts: 305
I have same problem on my electrical fan except some times it turns on sometimes it doesnt. And the overhead computer beeps once in awhile to. Wonder if theres a connection. Maybe it beeps cause fan doesnt kick on. I've watched the fan too. Was going to change motor but when i direct wire to battery it comes on. Started jeep with a/c on it ran fine. Replaced relay and connector, fuse last month and temp sensor last year. Today started to overheat, popped hood, fan not running dont know why. Doesn't matter if a/c is pushed. Still sometimes comes on sometimes no. Its a pita. And had new waterpump, fresh coolant and thermostat 2 months ago from this

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post #17 of 21 Old 07-15-2013, 05:28 PM
cykaaro
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2000 WJ 
 
Join Date: Apr 2012
Location: orangville
Posts: 2,841
If you wire the fan directly does it work? could be the connector to the fan is an issue. That's what I recently went through. Could also be the fan is just failing. To check my relay we used the DRBIII scanner and had it trigger the fan on etc. This way we could see if the fan was coming om as designed, and if there was an issue with the relay. Found one of my 'backup' relays was no good this way. Being intermittent though, I'm thinking fan or fan connector. I've only experienced the relay failing. Never being tempermental.

As for the overhead, had mine acting strange beeping low coolant when there was nothing wrong. Seems to have gone away. Not sure what's up with that. Don't think it's related at all though as it only goes to the float in the overflow bottle. If it drops too much as in fluid is too low, it'll trigger it to go off on the overhead. Same with the washer fluid, although the float is different.

The beatings will continue until attitudes improve!

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post #18 of 21 Old 07-15-2013, 06:55 PM
Calebt59
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2001 WJ 
 
Join Date: Jul 2013
Location: Milford
Posts: 4
I had this problem with my 02 grand cherokee, I changed the fan relay and the problem went away. I think it controls the fan speed as heats up and cools down.
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post #19 of 21 Old 07-16-2013, 05:33 PM
cykaaro
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From my understanding, that's it exactly what it does.

The beatings will continue until attitudes improve!

HID Quad bi-xenon + foglight retrofit
http://www.hidplanet.com/forums/showthread.php?44572-Jeep-2000-Grand-Cherokee-WJ
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post #20 of 21 Old 07-16-2013, 06:58 PM
jwrangler91
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1991 YJ Wrangler 
 
Join Date: May 2005
Location: Fleetwood, PA
Posts: 130
Just had the same problem. My fan wasn't coming on at all. Changed the fan breaker and it worked. Think I played 45 bucks. If you YouTube it, there is a video where there is a shortcut. I took the passenger headlight off, dremmeled a hole in the plastic and changed changed it that way.

91 YJ- Gone
97 XJ- Gone
99 Grand - Daily Driver
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post #21 of 21 Old 07-25-2013, 10:44 AM Thread Starter
mdavis83
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2001 WJ 
 
Join Date: Sep 2012
Location: Tulsa
Posts: 112
So I finally got time to drain the radiator and change the thermostat. It is still getting hot. I did notice that my fan wasn't coming on. Even with the ac on. It seemed to be fine and not getting hot until I turned the ac on. I know that my fan has been working. Maybe it is working intermittently? Because sometimes it gets hot and sometimes it doesn't. Would that be the relay??
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