So anyone else out there that has done some heavy mudding notice you have dirt blowing out your A/C vents when you put the heat on. Only really does it when it is turned all the way up with the heat on.

Living in dirt city Arizona, dirt blowing out when the AC or heat are on is a common place. I just make sure I close the vents when I off-road and hope for the best when I turn stuff back on. I myself don't really mind but I've got little ones and the AZ dirt has been known to carry disease like what causes Valley Fever.

the main cause of this is the lack of a cabin air filter

if jeep put one in most of us would be changing it weekly lol

It most definitely is a Jeep thing

It is a decent amount blowing out of the vents, if it was a little bit here and there i would understand. Sometimes it is like i want to wear my atv goggles while it's on full blast.

I've had full on sand storms in my Jeep many times. I guess that's what I get for riding the Florida dust trails with 0 visibility with no doors or top

Anyone elses heat/AC smell like Florida swamp mud?

mine is a mix of swamp and regurgitated chicken wings

This is after vacuming less than 4 days ago and barely turning the heat on. Also haven't really been in any mud since November.

Take a shop vac to it and suck out the dirt/dust from the a/c vents. You can remove the vents by twisting the ring about 1/4 way and then it will slide out. That should help it till the next time you go topless.

That's the thing that gets me. Down in the air vents(when taken out) seems to stay clean(cause it all gets blown in my face). I've never gone off any paved roads when my doors/top has been off either. Only been out in the mud around 10 times and always wash the jeep soon after(under the hood and underneath as well)

Cats piss and puke in my jeep. Dirt? LOL

I work in the new home industry and I am always around lots of dust... only happens a couple times a year, but I make sure my top is off and driving 60 mph and turn the vent on full... cleans it out pretty good.

Yes this is a REAL problem unlike the rest of the posts in the thread are making fun about!

I have a wife and daughter with asthma problems. It IS a health hazard for them to be breathing in dust when ya don't have to. One of the reasons we purchased the JK Unlimited was so the WHOLE family could get out and enjoy the back roads. When we are in a Jeep club event and the line of Jeeps ahead of us is kicking up dust it hard to stay with the group if we have to drop back so far to avoid the dust. YES THIS IS A JEEP THING!

1 month ago I was out with the 2 other Jeeps and came back home to a interior full of dust. I drive the Jeep to work every day and when I turn on the A/C I get a blast of dust each time. I have removed the vent louvers and cleaned them, but the dust collects back on them in a few days. I believe the dust has settled into some low spots within the duct tubing and works it self loose with the sudden rush of air coming through the system as start up.

Can anyone tell me where the "fresh air" intake comes from? I don't need your guess but actual knowledge of the system. I've pull the cowl apart in front of windshield and looked inside to see multiple places where air might get delivered to the A/C system. I've tried closing them off with duct tape as an experiment to see if I could reduce the amount of dust coming in. I saw no improvement.

I don't believe a fresh air filter will help especially where it is located in the system on the 2011 and newer JK's. Trying to install a filter into the same position on the 2010 and older models I believe would be a waste of time and money. Has anyone placed a filter in front of the intake to eliminate dust coming into the cabin?

mine does it too.
If you put on recirculate it wouldn't do it. Just have to hit the button every time u restart the motor.

also after a big wheeling trip i would crank up the fan and flip through all the vent modes to get any dust out. That way i wouldn't get a big surprise later

Here is where the air comes in for the AC, first post in the link. https://www.jkowners.com/forum/showth...bodyguy+intake I haven't gone mudding in quite a while so all the loose mud/dirt in there probably worked it's way through the system for me.