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fan only works on high

Old 03-18-2011, 02:34 PM
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Default fan only works on high

hey my fan only works on high, as in its off or all the way on.

anyone know a quick cheap fix?

2000 xj sport
Old 03-18-2011, 02:41 PM
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Blower motor resistor, $40 fleabay
Old 03-18-2011, 07:03 PM
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x2 what he said
Old 03-18-2011, 07:46 PM
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Could be fan speed switch. Mine was messed up so i took air controls apart and found the switch had become hot and melted. 15 mins later and a $2 junkyard replacement switch and I was done. Worth a shot.
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Old 03-18-2011, 07:48 PM
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Originally Posted by nme159
Could be fan speed switch. Mine was messed up so i took air controls apart and found the switch had become hot and melted. 15 mins later and a $2 junkyard replacement switch and I was done. Worth a shot.
is this not the resistor?
Old 03-18-2011, 08:05 PM
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This is a switch.
Attached Thumbnails fan only works on high-image-3588279651.jpg  
Old 03-18-2011, 08:09 PM
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This is exactly how mine is on my 98. I have gotten 2 different switches from other xjs in junk yards and they still didn't fix it so I just said fine I'll live with it. X3 on what the first guy said haha
Old 03-18-2011, 08:13 PM
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It is behind the part you move up and down for your fan speed on your dash.
Old 03-18-2011, 08:14 PM
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This i believe is the resistor. Its under the dash under steering column.
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Old 03-18-2011, 08:22 PM
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If it only works on high, I would be 99% sure it's the resistor. $15 at Napa. Have done dozens of them on Dodge trucks and mini vans, and it always solves the problems, I can't beleive Jeeps would be any different, heck the resistors even look the same.
Old 03-18-2011, 10:25 PM
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Originally Posted by nme159
This i believe is the resistor. Its under the dash under steering column.
On my 92, it's under the glove box...I had to change mine and just did a search here and was able to find how to change it...
Old 03-18-2011, 11:01 PM
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thanks guys im going to head to napa tomorrow for the resistor. ill report back.
Old 03-19-2011, 07:05 AM
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On my 98 the resistor is behind the glove box. When I did mine, I took out the glove box, it was still a PITA because it's so tight, but it solved the problem.
Old 03-31-2011, 10:28 PM
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It is the resister. The three coils in the unit apply varied levels of resistance in the circuit which allows your blower to run at different speeds. The more resistance, the lower the fan speed. High works because it doesn't require any resistance and therefore, essentially bypasses the unit. It is located under your glove box almost directly in the middle of the passenger footwell. There is a trapazoid shaped hole cut into the cowling down there and the business end of the resister goes into it. Only the plug and pigtail show from the footwell side. Two screws hold it in.

It isn't under the steering column but it looks like NME159 was when he took that pic!
I tried to get mine from a local junkyard but they go pretty fast, especially when guys take "a couple extra just in case".

Last edited by xj2fsj; 03-31-2011 at 10:32 PM.
Old 04-13-2011, 10:40 PM
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U ever resolve this?

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