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07-13-2013, 07:09 PM | #1 |
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Join Date: Jul 2010
Location: Scottsdale, Arizona
Posts: 204
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Air conditioner smell...
I have a 2009 Tahoe. I have noticed that the A/C air seems to have a dirty/moldy smell. I looked to see if there is a cabin filter but I guess they do not use a cabin filter any longer. Has anyone had this problem and figured out what can be done without taking it to the dealer for a $$$ repair?
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07-19-2013, 11:03 AM | #2 |
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Join Date: Mar 2000
Location: Cypress, TX
Posts: 39,021
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Re: Air conditioner smell...
I have used Fabreeze with some success. It worked well on the last truck I sold but my 09 is being a bit more stubborn. I just spray it down the vents and let it sit.
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07-30-2013, 06:56 PM | #3 |
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Join Date: Mar 2011
Location: Dallas, Texas
Posts: 920
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Re: Air conditioner smell...
My dad's Suburban is the same way. I can't stand it.
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08-25-2013, 01:14 AM | #4 |
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Join Date: Aug 2011
Location: Houston TX
Posts: 184
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Re: Air conditioner smell...
They should have a filter under the dash on the passenger side?
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08-31-2013, 01:05 AM | #5 |
Collector of Projects
Join Date: Apr 2003
Location: Las Vegas
Posts: 3,106
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Re: Air conditioner smell...
I think there was a TSB for this....
TECHNICAL Bulletin No.: 99-01-39-004D Date: August 10, 2011 Subject: Air Conditioning Odor (Install Evaporator Core Dryer Kit and Apply Cooling Coil Coating) Models: 2012 and Prior GM Passenger Cars and Trucks All Equipped with Air Conditioning Supercede: This bulletin is being revised to add the 2011 and 2012 model years. Please discard Corporate Bulletin Number 99-01-39-004C (Section 01 - HVAC). Condition Some customers may comment about musty odors emitted from the Heating, Ventilation and Air Conditioning (HVAC) system at vehicle start-up in hot, humid conditions. Cause This condition may be caused by condensate build-up on the evaporator core, which does not evaporate by itself in high humidity conditions. The odor may be the result of microbial growth on the evaporator core. When the blower motor fan is turned on, the microbial growth may release an unpleasant musty odor into the passenger compartment. There are several other possible sources of a musty odor in a vehicle. A common source is a water leak into the interior of the vehicle or foreign material in the HVAC air distribution system. Follow the procedures in SI for identifying and correcting water leaks and air inlet inspection. The procedure contained in this bulletin is only applicable if the odor source has been determined to be microbial growth on the evaporator core inside the HVAC module. Correction Many vehicles currently incorporate an afterblow function within the HVAC control module software. |
10-24-2013, 10:07 PM | #6 |
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Join Date: Jul 2009
Location: Ft. Worth, Tx 76135
Posts: 64
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Re: Air conditioner smell...
The AC on my '11 extended cab sucks all together. I think it freezes up and makes a loud noise in the passenger vents, and blows a fog or something from the vent. Need to take it to the dealer while its under warranty still.
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10-27-2013, 03:10 AM | #7 |
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Join Date: Mar 2013
Location: Oklahoma
Posts: 122
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Re: Air conditioner smell...
They took out cabin air filters several years ago IIRC, something with the newer a/c system they are not needed?
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