If anyone knows how to locate and change the Interior Air Filter on a 2004 Silverado, please post the information here.
From the research that I have done, is appears that the cabin air filter (also known as the "Interior Air Filter" was discontinued on the 2003 Silverado. Apparently, there were a few early 2003 Silverados which used up the last of the 2002 under-dash units which had previously contained the Interior Air Filter, but the actual air filter elements were not included. For the last 2 years, I have assumed that my 2004 Silverado has no Interior Air Filter.
Now, I am not so sure, because the Chevrolet website is claiming a victory over the Ford F-150 by stating that the 2005 Silverado has an Interior Air Filter, while the 2005 F-150 does not. From the Chevrolet website:
[Interior Air Filter is Standard on the Silverado 1500 Regular Cab 2WD Work Truck Long Box while Not Available on F-150 Regular Cat 4X2 145-in. WB XL Styleside.]Unfortunately, you need to go to the page below and punch in Model, Style and Trim to get to the comparison page. Then, place your cursor over the blue-highlighted word "Standard" on the line reading, "Interior Air Filter."
So, did Chevrolet discontinue the Interior Air Filter on the 2003 and 2004 Silverados only to bring it back on the 2005 and 2006 models? This hardly seems likely when drum brakes replaced disk brakes on the rear of 1500 series Silverados in 2005. For more on this, see my post noted below:
Thursday, February 16, 2006 9:31 AM
Silverado: Same Truck For Less Money???