Sour smell from air vents - JeepForum.com
 
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post #1 of 5 Old 05-16-2012, 09:58 PM Thread Starter
kaotickustums91
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Sour smell from air vents

Ok I've got this sour smell coming from my air vents only when the I turn on the ac when it's off you can't smell it are there filters or something in the dash that could get wet or anything like that

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post #2 of 5 Old 05-16-2012, 11:29 PM
DubJay99
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i have the same issue. Check your radiator hoses make sure theres not a leak. When i turned my AC on it smells like coolant. I purchased new hoses just havent put them on yet.

Kolak OME HD Lift-Bilstein 5100 Shocks-Flowmaster Super 44 HD

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post #3 of 5 Old 05-17-2012, 12:28 AM
bluevailco
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Some cars have filters that look just like your air filer.in The lower vent box by a/c or inner fenders
There intended to catch all that extra dirt an grime from the out side air before going through your cars vents. I had to change one on an Audi a6,after they burned up there clutch because it held the smell.
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post #4 of 5 Old 05-17-2012, 12:38 AM
bluevailco
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Yes many cars have a filtration system, the filters look just like a normal air filter there intended to catch any extra dirt an grime from roads an out side air.
Normaly located in inner vent box before a/c an many times inner fenders where vent opening starts. I had to change one on an Audi a6 after they burned up the clutch because, It retained the smell an stunk incredibly when vents where blowing air.
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post #5 of 5 Old 05-17-2012, 08:15 AM
Double E
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That outside air vent is not the cause or solution here. It's more plausable that there's a clog not letting out condensate from the drain tube or as suggested, perhaps an antifreeze leak into the heater core area.

I believe the drain tube is around the front passenger side, behind the front axle. A stiff wire and maybe evena short burst of cleaning agent pushed up there after might be a good way to begin to troubleshoot.

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