Mechanics

FOUL ODOR

2002 GMC Envoy

Air Conditioning problem
2002 GMC Envoy 6 cyl Two Wheel Drive Automatic 89,000 miles

I have a foul odor coming from my ac. What is that?
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Deniseya1
December 30, 2008.




Mold or mildew (fungus) in the AC evaporator core.

You can buy powerfull disenfectants from most autoparts stores.

Run in RECIRC mode for 10 min. On highest blower setting, use highest heat mode, prevent compressor from engaging by disconneting compressor wire.

Remove passengers side lower side dash tim panel, and small access cover from HVAC housing.
Point nozzle of disenfectant insidehole and to left towards evaporator core, follow manufactuers instructions. Also make sure evaporator housing drain tube is clear.

Mmprince4000
Jan 17, 2009.


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