photography by: the author
Replacing an Often Overlooked Maintenance Item with the Help of K&N Filters
With so much focus on the drivetrain, suspension, brakes and the rolling stock, many of us tend to completely overlook the cabin filter. Changing the cabin air filter is not something that has really ever occurred to most of us, including your author. Before I bought my Tahoe, I had owned a few SUVs and trucks before, but never for long enough to even worry about the cabin air filter. Iām a bit of a habitual car buyer and seller when it comes to daily drivers. Iāve owned my Formula for 12 years, but that doesnāt even have a cabin air filter. So when I was asked if I wanted to change the one in the TahoeĀ with a K&N reusable filter, my reaction was, ādoes it even have a cabin air filter?’ As it turns out, it did, so I was all for it.
The K&N reusable cabin air filter offers all of the standard cabin air filter characteristics, like controlling odor, clearing the incoming air into the cabin, capturing mold, pollen, etc. Itās also designed for reuse, and the design is a lot more āhigh-techā than their paper filter counterparts.Ā I recognized the design right away when I opened the box to check it out. It looks exactly like the reusable air filters I’ve used from K&NĀ in both of my vehicles in the past, so I was happy about the familiar design.
For my 2001 Tahoe 5.3L, there are two cabin air filters to change, theyāre basically stacked. Iām not exactly sure why there isnāt just one big air filter, but this is the design GM went with, so who am I to argue? To get to the air filters, itās really simple.
The first step is taking the under dash panel off. Apparently at some point, someone put a different size bolt in one of the holes on mine, I guess itās been off before for some reason. That reason was clearly not to change the cabin air filter, youāll see why I say that in a minute.
For mine, I ended up using a 7mm socket for the original bolts, and 6mm to remove the underdash.
The 7mm socket will also need to be used for removing the bracket that holds the filters into place, so go ahead and remove that too.
After taking off the bracket,Ā remove the first filter, then the second one hiding up top.
Some pretty nastyĀ stuff was engulfed in our Tahoe’s filter, elements that arenāt even indigenous to my neck of the woods. In other words, tās probably never been changed.
Once we got over the initial shocks of the junk that fell out with the filters, I vacuumed up the mess, and installedĀ Ā the new K&N filters in place,, put the bracket back on, and bolted the kick panelĀ back in.Ā In total, it took aboutĀ fiveĀ minutes to change it out.
Right afterwards, I had to run an errandĀ and immediately noticed the difference in the air conditioner temperature. I resideĀ in Atlanta, and weāve been in the high-90s for a while now — so Iāve hadĀ the A/C fan setting on “5” since April. After I changed the cabin air filter to the K&N unit, the air was ice cold, and eventually I had to turn it off to thaw out for a few minutes.
After driving around for a few days with the new filters installed, Iāve noticed my allergies (which are habitually horrible) have gotten a ton better ā thatās one thing I did not expect. Apparently breathing in all that junk from the old filter wasnāt great for my respiratory system. Who knew?
That being said, in about 12,000 miles, or 12-months, Iām going to have to clean these with a special cabin air filter kit. I assumed it would be the same as the oiling kit for the intake air filters, but thatās not the case, these arenāt oiled. The cleaner kit (PN 99-600) consists of a cleaner and a refresher spray, seems pretty easy!
All-in-all, Iād say the K&N cabin filterĀ is totally worth the investment. The removal and installation were something anyone can do, and you should be changing your cabin air filter during regular intervals, anyway. My A/C is now ice cold, and the air quality is clearly so much better now. I would definitely recommend the K&N reusable cabin air filters to anyone with a cabin air filter equipped vehicle!
Elizabeth is a hardcore horsepower enthusiast with unmatched intensity for making things faster and louder. She wakes up for power and performance and only sleeps to charge up for the next project thatās heading to the track. From autocross to drag racing, Elizabeth is there with you, so stay tuned for her unique perspective on horsepower news, builds, tech info, and installs ā with her, itāll never be boring!
