Cabin Filters (NSFB) not safe for BITOG

Kokopelli34179

Site Donor 2021
Messages
62
Location
New Mexico
I live in the desert, and neither the CAF nor the EAF in my car looks like that... of course, I change them out annually whether needed or not.
 
Messages
4,966
Location
Lima, Ohio, USA
In most cases, folks do not even know that their car has a cabin filter. My friend kept telling me, I change the air filter regularly until I pull the cabin filtero_O
i just found out last fall, that the Sonata I owned from Aug 2001-Feb 2010, and put about 100,000 miles on, had a cabin filter.

I can only imagine what that thing looked like....
 
Messages
5,718
Location
Atlanta,GA
I just bought a 5 yr old MB ML350 with 37k on it. Noticed the ac smelling like a dirty vacuum cleaner bag. Sure enough it had never been changed. And the vehicle has 3 filters. It still smells with new filters so next step is to clean the heater/ac core.
The air filter also had never been changed but it is a pita to check or change and I think the car has a monitor that signals when it's totally clogged.LOL
Check for a recall on the AC odor. The vehicle might be young enough.
 

Ursatdx

Thread starter
Messages
396
Location
New Jersey
Another.
CAF3.jpg
 
Messages
713
Location
North Carolina
My sister gets her 2012 Accord serviced religiously at her local Honda dealership. She was visiting recently and I pulled her CAF and it was pretty bad, maybe 4 years or more based upon mfg date stamp and amount of crud. Very surprised those yo-yo's had not hit her up for that.
 
Messages
2,087
Location
Winnipeg MB CA
OK, I'll play - this is from this afternoon, out of a '98 Honda CR-V with 345K km on it. Given the difficulty involved in accessing the cabin filter, I doubt it had been changed in a long time, if ever. The owner had complained of poor heat, and the HVAC cabin fan was roaring away on high but generating little airflow out of the vents.

The side-by-side photo was taken after I'd cleaned a bunch of debris out of the old one. It did not pass light when held up to the sun. The new one is from NAPA.

20210410_133256.jpg


Here's my driveway after I dropped the old one a few times to see how much dirt we could get out of it:

20210410_160805.jpg
 
Messages
13
Location
DFW
Chevy Trailblazer 2002 and 2003 had an access panel and screw for a cabin air filter but in GM's cheapness they deleted the actual filter. From about mid-2003 on the access panel and screw were gone from the evaporator housing, just a smooth surface where they were. I installed a CAF in my Trailblazer in about 2004 when people started finding about it. Takes the same filter as a 1999 Silverado.

I recall when I had a '68 GTO at about 15 years old it developed a leak in the evaporator core. Got it out and found was filthy with dirt grass leaves etc and apparently that had made a corrosive condition while wet and caused a hole and leak.
 
Messages
8,640
Location
Champlain/Hudson Valley
Many say: A dirty filter is a happy filter. This is funnier when read right after seeing those clogged CAFs.
Many say: Oh, so anyone living pre-CAF is going to die? You gotta stand for something, I suppose.
Ed in Tx said it right. They're there to protect the AC evaporator / heater core.
 
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