air/heater air not blowing out on 2000 Chevrolet Astro

No air out of the vents when I turn on the a/c or heat

Asked by for the 2000 Chevrolet Astro
1 answer
there is a vaccuum line in the front of the van that goes back by the throttle body that breaks. it usually breaks out fron where you can see it. easy fix once you find it.

Roy