Almost choked on my nachos! thanks for a great laugh!
Cabin filter
Tech Contributor
Joined: Dec 2003
Posts: 19,384
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From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
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Melting Slicks
Joined: Apr 2002
Posts: 2,631
Likes: 2
From: Clever, MO aka SOMO
Melting Slicks
Joined: May 2006
Posts: 2,303
Likes: 40
From: Edmonton Alberta
GM had them in their Silverado trucks for a while - I believe they have since pulled them out, (2000 to 2006 models). Customers had a tendency to forget about them which caused problems like poor heat circulation and foul smells because they were plugged up. They were rather pricey and didn't really prevent dust from entering the cabin anyway. 
Tech Contributor
Joined: May 2008
Posts: 3,100
Likes: 17
From: Somers, CT and Clermont, FL
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16
Actually,I'm happy that it the C5 doesn't have one. 
My daily driver Mercury Sable has one that fits inside the cowl plenum.
It plugs up with debris far short of the recommended 30K mile change interval,and greatly reduces the heater and A/C airflow.
It's also a PITA to replace. I'm planning on just leaving it out next time.
Melting Slicks
Joined: Apr 2002
Posts: 2,631
Likes: 2
From: Clever, MO aka SOMO
Actually,I'm happy that it the C5 doesn't have one. My daily driver Mercury Sable has one that fits inside the cowl plenum.
It plugs up with debris far short of the recommended 30K mile change interval,and greatly reduces the heater and A/C airflow.
It's also a PITA to replace. I'm planning on just leaving it out next time.
http://www.chevy-autoparts.com/parts...LS1&logo=chevy
Le Mans Master
Joined: Feb 2002
Posts: 6,937
Likes: 21
From: Waldorf MD
http://www.newgmparts.com/partlocato...layCatalogid=0
Le Mans Master
Joined: May 2006
Posts: 5,747
Likes: 224
From: Hillsboro Oregon
And here is where it is located, not easy to change:
http://www.newgmparts.com/partlocato...layCatalogid=0
http://www.newgmparts.com/partlocato...layCatalogid=0
I use the foam filter that goes in the cowl vent. Amazing how much crap it actually catches.......you know when you wash it
Keeps my udders from filling up with crap
Le Mans Master
Joined: Feb 2002
Posts: 6,937
Likes: 21
From: Waldorf MD
