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 Post subject: elecrtic cooling fan not operating properly
PostPosted: Mon Feb 12, 2018 10:24 pm 
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Joined: Sun Feb 28, 2016 9:39 pm
Posts: 57
The electric fan does not operate with temperature rise or AC. but does with relays removed.
the question what would be the easiest way to get it operating, hopefully automatically
would it be possible to get power from the compressor clutch to activate the fan?

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2006 KJ CRD
Yeti tune
EGR delete
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Airtex fuel pump
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2" lift


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 Post subject: Re: elecrtic cooling fan not operating properly
PostPosted: Mon Feb 12, 2018 11:26 pm 
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Joined: Fri Jun 22, 2007 11:43 am
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Location: Green Cove Springs FL
This should be able to answer your questions:
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=87751

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Bought my '05 CRD on June 2nd '07, used with 29,000 miles.
intake elbow and EGR delete. 7 volt Etecno glow plugs
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Provent and modified factory 180F thermostat
Replaced cylinder head (cracked) at 160,000 miles + ARP studs
2.5 inch lift, 255-75-17 tires.
Still love it.


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 Post subject: Re: elecrtic cooling fan not operating properly
PostPosted: Tue Feb 13, 2018 12:01 am 
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Joined: Sun Feb 28, 2016 9:39 pm
Posts: 57
Thanks,
my AC. Is okay but no fan still on either.
any ideas on the compresser clutch activation

_________________
2006 KJ CRD
Yeti tune
EGR delete
Straight through exhaust
Airtex fuel pump
2 micron filter
2" lift


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 Post subject: Re: elecrtic cooling fan not operating properly
PostPosted: Wed Mar 07, 2018 3:34 am 
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Joined: Sat Apr 15, 2017 3:48 am
Posts: 119
Location: White River in the Bush South Africa
phum wrote:
Thanks,
my AC. Is okay but no fan still on either.
any ideas on the compresser clutch activation


You can fit a toggle switch to turn ON the Aircon Clutch relay but maybe the system is low on refrigerant so the Low Refrigerant Sensor is stopping the clutch from engaging....forcing the clutch to engage with low refrigerant will destroy the compressor!

If you mean that the aircon clutch is engaging and you want to jumper +12 volts from the AC clutch to the cooling fan then you could run a wire from the AC relay pin 87 to the large cooling fan relay with a large diode in series with the wire. You may have to upgrade some fuses in this circuitry as the fan draws a fair amount of current :wink:

What year is your KJ so I can check the correct wiring diagram?


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 Post subject: Re: elecrtic cooling fan not operating properly
PostPosted: Fri Mar 09, 2018 12:51 am 
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Joined: Sun Feb 28, 2016 9:39 pm
Posts: 57
2006

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2006 KJ CRD
Yeti tune
EGR delete
Straight through exhaust
Airtex fuel pump
2 micron filter
2" lift


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