Why won't the air blow out of the feet or face or defrost according to the contr on 2002 Pontiac Sunfire

With the AC running, when I put the controls to feet only, the air blows out the feet, but when I set it to blow on the face only or defrost, it blows on the feet. What is the problem? I do not hear a vacuum noise when changing the setting.

by in Joliet, IL on July 16, 2011
Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
1 answer
ANSWER by , March 15, 2013
check your blend door actuator