Sup guys. I have a 98 durango 318 has almost 290k miles i have put alot of money into the truck (my pride and joy) but recently i have came across an issue and unfortunately the ac isnt my strong suit. My ac has stopped blowing out my front vents only comes out defrost and rear vents. First thing i figired was maybe a vacuum leak but i couldnt find one or maybe over looked one. And help or advice?? Thanks alot

 

That's definitely a vacuum issue. The default position for the diverter door with no vacuum is defrost. There is a vacuum line that goes through the firewall near the heater hoses, and beyond that you're under the dash looking at those hoses and actuators.