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Old 08-01-2010, 11:08 PM   #1
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Vent problem

I bought my 2006 Wrangler brand new and love it!!! Recently, however, I've encountered a problem where the vent will only blow out air when it's on the High position. So, it's either blowing at full speed or not at all. I thought it might have been a fuse or a wiring problem, but if that was the case, it wouldn't work at all. Any ideas?

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Old 08-01-2010, 11:23 PM   #2
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check the knob. I know it sounds stupid but when I bought mine the knob wasnt on right so even though it was turned down it actually wasnt. Other than that you might wanna take the dash apart and check wires. Its only a few bolts to get to it..

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Old 08-01-2010, 11:24 PM   #3
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Blower resistor switch is probably bad, they do it all the time.
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Old 08-02-2010, 07:16 AM   #4
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I think there's a resisor on the fire wall behind the glove box that craps out, pretty common
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Old 08-02-2010, 07:48 AM   #5
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The blower resistor is mounted behind the glove box...really hard to find until someone shows you where to find it and then 'duh'...it's right there. Easy to replace, and is covered under warranty if you still have warranty. My 03 is on the 3rd one already-and it had been replaced before I got it to begin with. VERY common factory defect, same on cherokees. There is a schematic to build a new one with radio shack parts-my son did it for his cherokee-but for the time it takes, worth just buying the new part and asking the parts man to show you in the book where it is. Although friend of mine did have a defective switch knob on his sahara, it isn't the knob or wiring-it's the blower resistor. And there is no way to replace the knob with an older model reostat type...I looked into it and you can't make it fit in there. So you are stuck. Don't get a used one from the salvage yard-it will probably go bad shortly after you install it anyways. My replacement one is now going on 3 years old and hanging in there....
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Old 08-02-2010, 10:06 AM   #6
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Quote:
Originally Posted by DevilDogDoc View Post
Blower resistor switch is probably bad, they do it all the time.
This happened on my XJ-- it was the resistor...

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