got some issues wit my cabin pressure inside the truck, got a 00 dakota slt club cab and i noticed tonite that when i turn the fan on all the way, my ears popped and i could hear whistling. after checkin out the truck realized that air is blowing out the door handles and around the doors. anyone no what could cause this??

 

I know mine whistles through the sliding rear window

 

Bad weather stripping? That could be the only thing I could think of for the doors. If the rubber isnt plyable anymore or it doesnt bounce back you wont get a seal and it will allow air to escape and come in during driving.

 

thanx blown 346 however, the air isnt coming in the cab its like its not equalizing cause wen u crank the fan and close the door the air blows out the handles even stopped in the driveway and wen u open the door you can feel the pressure push out the door, i got it in the garage now with the heat on to see if sumthin froze up because i washed my truck off yesterday wen it was +6 and last nite it was -24. hopefully thats it??

 

I believe there are two vents in the back wall of the cab that are supposed to let the air out when you have the temperature controls set on vent, rather than recirculate (which I think is only on the 1st two AC settings that have the snowflake symbol). Sounds like your vents iced over when you washed your truck in the cold. If those are frozen up, then the air will find any and all other exits it can to get out of the cab. I should fix itself if you left it in a heated garage.