In-Cab Air Filter? 2004 Silverado - The 1947 - Present Chevrolet & GMC Truck Message Board Network

LBJ · 09-14-2021, 08:06 PM

2004 Silverado 1500 Ext Cab 4WD 5.3L engine.

I heard that there is an air filter inside the truck for passenger comfort. Where is that located? Thanks, LBJ

**CarolinaHD** · 09-14-2021, 08:40 PM

GM removed that starting in 2003. The indention is still on the HVAC box and you can retrofit it. There's a thread somewhere out there.

**MJN** · 09-15-2021, 08:15 AM

Heres a video showing you how to access it.
https://www.youtube.com/watch?v=35u7qASIG5U
Like it was said above a 2004 wouldn't have the filter any longer. My 2002 Yukon XL had it- the worst part was getting the screw started for the trim panel above the transmission hump.

LBJ · 09-15-2021, 11:03 AM

Thanks guys, I never heard any year model reference on the TV. One of those many car repair/redo shows. LBJ

**hatzie** · 09-15-2021, 08:43 PM

There's a cabin air filter retrofit post listed in the HVAC section of the FAQ sticky.
There's actually a GM TSB showing how to install the filters.

09-14-2021, 08:06 PM	#1
LBJ Registered User Join Date: Jun 2007 Location: TEXAS Posts: 378	In-Cab Air Filter? 2004 Silverado 2004 Silverado 1500 Ext Cab 4WD 5.3L engine. I heard that there is an air filter inside the truck for passenger comfort. Where is that located? Thanks, LBJ

09-14-2021, 08:40 PM	#2
CarolinaHD Moderator Join Date: Aug 2017 Location: Cabarrus Posts: 418	Re: In-Cab Air Filter? 2004 Silverado GM removed that starting in 2003. The indention is still on the HVAC box and you can retrofit it. There's a thread somewhere out there. __________________ Alex 1967 C50 292ci Lumber truck 1967 C50 292ci Dump truck 1967 C60 366ci Fire truck

09-15-2021, 08:15 AM	#3
MJN Registered User Join Date: Feb 2000 Location: Maquoketa, Ia/ Orr, Mn Posts: 3,051	Re: In-Cab Air Filter? 2004 Silverado Heres a video showing you how to access it. https://www.youtube.com/watch?v=35u7qASIG5U Like it was said above a 2004 wouldn't have the filter any longer. My 2002 Yukon XL had it- the worst part was getting the screw started for the trim panel above the transmission hump. __________________ '51 South Bend Model "9A" '56 Chevy 3600 NAPCO '74 Chevy Cheyenne Super K20-restored on 37's '72 GMC Sierra Custom K2500- in progress '08 GMC Envoy Denali '12 GMC Sierra 2500HD Denali '17 GMC Yukon XL VCCA member #58596 http://www.nohrco.com

09-15-2021, 11:03 AM	#4
LBJ Registered User Join Date: Jun 2007 Location: TEXAS Posts: 378	Re: In-Cab Air Filter? 2004 Silverado Thanks guys, I never heard any year model reference on the TV. One of those many car repair/redo shows. LBJ

09-15-2021, 08:43 PM	#5
hatzie Moderator Join Date: Oct 2008 Location: Wentworth, NH Posts: 4,977	Re: In-Cab Air Filter? 2004 Silverado There's a cabin air filter retrofit post listed in the HVAC section of the FAQ sticky. There's actually a GM TSB showing how to install the filters. __________________ 1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials... 1973-1991 GM Light Truck Service, Unit/Overhaul, Wiring Manuals, Parts Books and Some 1968-1999 GM Service Training textbooks in PDF 1988-1998 GMT400 CK service manual project 1988-1993 GMT400 CK parts books. 1967-1972 GM Light, Medium, & Heavy Truck Service Manuals in PDF Please include at least the year and model in your threads. It'll be easier to answer your questions. And please let us know if and how your repairs were successful.



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