Sour smell from air vents -
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post #1 of 5 Old 05-16-2012, 09:58 PM Thread Starter
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1999 WJ 
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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
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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.

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Originally Posted by Cebby View Post

(BTW - nice sarcasm coming from a guy who doesn't even have a WJ)
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post #3 of 5 Old 05-17-2012, 12:28 AM
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Some cars have filters that look just like your air 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
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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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Changes & fixes: Rear Addco sway bar & greasble bushings, upgraded headlights, upgraded tail lights, new hood struts (replaced 2X), new rear hatchglass struts, new radiator (replaced 3X), new oil pressure sending unit (replaced 4X), 2 new speed sensors, 2 new door lock actuators, new ignition key cylinder, chrome front tow hooks, Mobil 1 Synthetic 5/30, Purolator Pure One oil filter, EBC slotted & dimpled rotors, EBC Greenstuff pads, new front shocks (replaced 3X), new rear shocks (replaced 2X), new IRO steering stabilizer, new timing chain cover, new water pump, thermostat, new thermostat housing, new high pressure power steering hose, Michelin-X radials, new sunroof assembly, new single-piece lug nuts, new exhaust manifold studs & gasket on driver's side, new Durango alternator. sticker, Visit when you can!
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