Tired of Eating Dust

[Jack W]

2017 Ram Express. Cabin fills with dust on dirt roads with A/C on re-circulate. Changed cabin filter but no change. You can hear a door close when actuating the re-circ. Any ideas short of pulling out the dash?

 

[Dean2]

Is the dust coming in through the AC/Ventilation, as in coming out the vents. This would be unusual but not unheard of and has its own set of fixes. Or is it coming in somewhere else, like rear air vents, past the door seals etc. You need to track down where the dust is getting in to have even a remote chance of fixing it.

If you are the first one down the road, the dust is created by your front and rear wheels, so most entry points should be behind the engine compartment.

 

[crash68]

You can hear a door close when actuating the re-circ. Any ideas short of pulling out the dash?

You can see the recirc door if you pull the glovebox out of the way.
As mentioned above check the cabin vents on the back wall of the cab.