How to clean evaporator of air conditioner

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12-12-2013 | 11:39 AM

#11

donbrew

Moderator

Joined: 01-23-2009

Posts: 25,339

From: Fredericksburg,VA

There are aerosol products on the market for the purpose. I think BG also GM sells one. Basically you spray into the cavity under the cabin air filter and the foam expands and sits for a while then drains out, hopefully you cleaned the drain first.

12-12-2013 | 11:39 AM

#12

Blue_SS

Senior Member

Joined: 06-07-2011

Posts: 2,180

From: SE Mich

One other easy tip to help keep it from getting/staying funky is to make sure you are pulling outside air and not re-circulating under most conditions. Re-circ does work better in high heat, but switch it back or you'll be smelling musty stuff. Fresh air really helps.

12-12-2013 | 11:47 AM

#13

donbrew

Moderator

Joined: 01-23-2009

Posts: 25,339

From: Fredericksburg,VA

Quote:

Originally Posted by Blue_SS

It switches back EVERY time you re start the car. GM does not want you to use recirc as a normal operation. If you push the recirc button the A/C will come on, but the A/C light does not. When you shut the motor down it goes back to fresh by default.

12-13-2013 | 01:58 AM

#14

sleeper

Platinum Member

Joined: 01-09-2007

Posts: 15,983

From: SE USA

Quote:

Originally Posted by Silverfox

Not sure if what I have always done is the best preventative but I have never had a fowl oder from the AC in any car I have owned. That's a lot of car/trucks.
I admit in this climate, AC is only used off and on for approx. 4 months of the summer and once in a while in the winter to reduce interior moisturer.

Each time I use AC, I finish up the day with the AC off and air dry the humidity and moisture out of the system.

Works for me and it only takes a minute with the fan on high.

SF

SF- That's precisely what I do & no fowl odors in my rides either.
& always use Fresh air mode as well.. .

12-13-2013 | 02:30 AM

#15

prod

Senior Member

Joined: 12-14-2007

Posts: 2,964

From: Toronto ON Canada

It also helps to crank the AC with full heat on to dry it out, helps prevent mildew. Ive corrected the odor after a few days of that, no spray products.