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aux fan temp controls

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Old Nov 24, 2008 | 04:04 PM
  #1  
finneys98xj's Avatar
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From: Virginia
Year: 1993
Model: Cherokee
Engine: 4.0L
Default aux fan temp controls

I have a question about the temp setting on the aux fan. Is there a mod to be able to make the aux fan kick on at a lower temperture? I don't want to put it on a switch because I would forget to turn it on.
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Old Nov 24, 2008 | 04:12 PM
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From: Minneapolis, MN
Year: 1988
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You could put the sensor in a warmer coolant stream (such as fabricating a bung in the hot-side radiator pipe.

If you can put up with a switch, just cut off the harness from the sensor or an old one and put the switch between those wires. This will give you fan control but it won't drain your battery as it is only active when the key is in run.
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Old Nov 24, 2008 | 04:23 PM
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you can wire the switch as a jumper so it turns on at normal times and when you hit the switch.
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Old Nov 24, 2008 | 08:25 PM
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at what temp is it suppose to kick in?
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Old Nov 24, 2008 | 09:45 PM
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220 i think
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Old Nov 24, 2008 | 09:46 PM
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mine hasn't got that high since I blow the head gasket and cracked the head.
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