Where is the cabin air filter in 2005 navigator?
All you need to do is put ( how to replace cabin air filter in a 2005 Lincoln Navigator ) in your search engine and you will find lots of You Tube videos showing how it is done.
According to your owners manual, your car only has them if you have “Climate Controlled Seats”
And there is a filter under each of the 2 front seats.
Page 199 of owners manual
https://www.fordservicecontent.com/Ford_Content/catalog/owner_guides/05navog3e.pdf
Imagine that. Another problem solved by the … owners manual.
It has this funny, uh weed smell?