Radiator fan turning on and off????
12-03-2012 | 01:41 PM
#1
Thread Starter
Seasoned Member
Joined: Jul 2012
Posts: 405
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From: Western, Pa (5 mins away from ohio border)
Year: 1999
Model: Cherokee
Engine: straight 6 (4.0L)
Radiator fan turning on and off????
My left fan is constantly starting up and shutting off non stop, my temp holds staedy around 208 so I don't think it's a big deal but I want to get it fixed
12-03-2012 | 01:52 PM
#2
Junior Member
Joined: Jan 2011
Posts: 56
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From: Kansas City Missouri
Year: 1999
Model: Cherokee
Engine: 4.0L
Just throwing this out there. Not sure now which fan it was but if your AC system is low and your running the defrost or the AC the fan will kick on and off with the compressor. That's what mine did. I filled the system and it stopped.
12-03-2012 | 01:54 PM
#4
Thread Starter
Seasoned Member
Joined: Jul 2012
Posts: 405
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From: Western, Pa (5 mins away from ohio border)
Year: 1999
Model: Cherokee
Engine: straight 6 (4.0L)
Originally Posted by CRF99XJ
Just throwing this out there. Not sure now which fan it was but it your AC system is low and your running the defrost or the AC the fan will kick on and off with the compressor. That's what mine did. I filled the system and it stopped.
12-03-2012 | 03:12 PM
#7
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 31
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
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12-03-2012 | 03:21 PM
#8
CF Veteran
Joined: Mar 2011
Posts: 2,570
Likes: 4
From: California
Year: 1992
Model: Cherokee
Engine: 4.0 HO
Sorry to thread jack, but is there a way to keep the AC from kicking on when the defroster is on? Kind of annoying on those cold mornings when I'm trying to defrost the windshield and let the Jeep warm up...
12-03-2012 | 03:24 PM
#9
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 31
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
Last edited by freegdr; 12-03-2012 at 03:27 PM.
12-03-2012 | 03:33 PM
#10
CF Veteran
Joined: Mar 2011
Posts: 2,570
Likes: 4
From: California
Year: 1992
Model: Cherokee
Engine: 4.0 HO
Ac is gotta do it to remove moisture from the system has no affect on defrost temps...https://encrypted.google.com/#hl=en&...w=1182&bih=801
12-03-2012 | 04:13 PM
#12
Thread Starter
Seasoned Member
Joined: Jul 2012
Posts: 405
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From: Western, Pa (5 mins away from ohio border)
Year: 1999
Model: Cherokee
Engine: straight 6 (4.0L)
Originally Posted by sthon
Sorry to thread jack, but is there a way to keep the AC from kicking on when the defroster is on? Kind of annoying on those cold mornings when I'm trying to defrost the windshield and let the Jeep warm up...
12-03-2012 | 04:19 PM
#13
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Joined: May 2008
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From: +34° 25' 35.67", -81° 21' 12.04"
Year: 1993
Engine: 4.0
12-03-2012 | 04:23 PM
#14
CF Veteran
Joined: Mar 2011
Posts: 2,570
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From: California
Year: 1992
Model: Cherokee
Engine: 4.0 HO
Yeah. That might be the best solution during the winter. I was running hot last summer during the 100+* days and upgraded my radiator, water pump, and replaced everything else, including the engine. I'm finding it's taking a long time to get to operating temps in the mornings even with a dealer thermostat, and the aux fan kicking on doesn't help. My temps are steady at 200 - 210* once it warms up, I guess I could even run a 60/40 mix of antifreeze/water to increase temps a bit.
12-03-2012 | 06:27 PM
#15
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Joined: Nov 2009
Posts: 8,172
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From: The Republic of TEXAS
Year: 1998
Model: Cherokee
Engine: 4.0L HO
Compressor is engaged in any of the 5 vent selector positions circled in yellow. The 2 white vent selector positions not circled, the compressor does not engage.