This Article has been updated by bulletin #PIT3330, dated December 22, 2004.
Condition/Concern: A customer may inquire about the availability of the passenger compartment air filter.
Recommendation/Instructions: Starting in 2003 model year, the passenger compartment air filter is no longer available as a factory option. With the redesigned HVAC case, there is no longer a cavity for the filter. The GM parts catalog indicates there is a replacement filter available; however, there is no provision for it.
January, 1, 2011 AT 3:31 AM
As you can see in the picture there is one there but how to get at it is the question I see no clips no screws nothing to get at it do I have to remove the whole HVAC duct to get it out because it stinks and when I touch it its wet
January, 1, 2011 AT 12:55 PM
That's not a filter. That is your evaporator core and I would be very careful not to puncture or damage it or you'll have a bigger headache that you want to deal with.
January, 1, 2011 AT 6:27 PM
Oh ok that makes sence then I dont understand why the vents blow stink air thoe and its wet inside there thats my whole issue it smells like stale water
January, 1, 2011 AT 9:30 PM
Evaporators are always wet from condensation. They grow bacteria after a while that causes the odor. Get one of those bug spray bottles with a spray wand and fill it with Lysol and spray it all over that evaporator and that should take care of the odor.
January, 1, 2011 AT 9:54 PM
Thank you very much for the help I was going nuts trying to figure this thing out ill try the lysol and hope it works I dont even use my heat because of the smell that come out
January, 1, 2011 AT 10:00 PM
It will work as long as you have access to spray it directly on the evaporator. I've done it many times. Don't be afraid to saturate it. They sell a lot of products for this but the Lysol is the best bet.