I have a 97 wrangler I can not get air out of my main vents. on 1997 Jeep Wrangler

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
Air comes out of wind shield defrost vent and the small vent over the main vent
(1) Answer
either your heater door switch is broken inside dash or its your vaccum lines that are cracked.