My air conditioner smells like vinegar

Asked by Guru9T391P Apr 02, 2021 at 01:41 PM about the 2007 Buick LaCrosse

Question type: Maintenance & Repair

My car's air conditioner smells like vinegar, but only
for a few minutes when I first turn the air conditioner
on. Is there any way I can fix this by myself?

1 Answer
40,160

TDolby answered 3 years ago

Most times, it from mold that has built up on the evaporator. You can have it cleaned and the also the ductwork with spraying in special cleaners. But before you do that, when was the last time you replace the cabin air filter? They should be replaced every 10 to 15K miles. I bet it is old, moldy and dirty causing the smell. I'd start by replacing it and see if the smell goes away. A $10 part.

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