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Old 08-19-2012, 05:53 PM   #1
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Fan switch/blower motor not working?

Hey all,
About a week ago I had my A/C on full blast and all of a sudden it stopped. And a couple times it would kick its self back on, and then shut back off. I can still feel a bit of cool air coming out of the vents, but it's not coming out with any force.

I need to resolve this issue before I start commuting to college and before fall and winter roll around. Any hints/tips would be appreciated. Thanks

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Old 08-20-2012, 10:09 AM   #2
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I know if it only works on High its most likely a blower moter resister issue. I'm unsure aobut it not working at all though

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Old 08-20-2012, 10:14 AM   #3
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You need to check the rear of the mode switch. Chances are that the switch and electrical connector is burnt. Have seen this a few times on a couple of 99- maybe 01 TJs. Easiest way is reach in through glovebox and wiggle the three wires on the back of the switch with the switch on and blower motor will prob come on.
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Old 08-20-2012, 10:46 AM   #4
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Yeah it won't blow at all. I guess if it came down to it I could check the blower motor.

And that's a good idea, when I get off of work I'll check it out and see if that the problem.

Thanks for you're input
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Old 08-20-2012, 12:58 PM   #5
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check blower relay , fuses . Its odd that it would quit that way usually its a speed or two first not kaput all at once . I'd say either a bad ground , relay , or the motor its self . It don't sound like the typical switch or resistor deal
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Old 08-20-2012, 02:55 PM   #6
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First, check the fuse behind glovebox and the blower relay next to the resistor..my guess is its the blower resistor that's out.
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Old 08-20-2012, 03:36 PM   #7
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speed #4 bypasses the resistor and goes direct to the blower . With a bad resistor you should still have Hi speed.
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Old 08-20-2012, 07:40 PM   #8
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I took off the glovebox, I turned the fan full blast I stuck my hand all the way back where the fan switch was, gave it a few tugs and nothing.
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Old 08-20-2012, 07:45 PM   #9
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Whoops, i didn't mean to send half of it. I was also going to say that I took the blower motor fuse out and plugged it back in, and there was almost a series of clicking noises as if the motor was trying to click on.

Also, I forgot to mention, at the beginning of the year, I had my heater core replaced. So maybe that could be what's wrong too.

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