2002 GMC Envoy Q&A
2002 GMC Envoy Question: AC works but will not blow from front air ducts. HELP!
Mine did the same thing; Changed the mode door actuator and now it works. - ProfessorG
THE AIR DIRECTION VENTS ARE BROKEN under the steering wheel you will find a plastic cover with 4 screws, remove it and change the direction of the air manually, therewith you have to purchase a new AC control system - WASSIM
The acuators that control the flow of air needs to be replaced. - txcountryboys75703