Allright I have traced my issue of not getting air out of my vents. I do not have a vacuum leak anywhere my issue is the part that the Yellow vacuum line connects to behind the gauge cluster. Every time I try to find the name of this part all i get are results for the blend door accuator or motor. Please help me find the name of this part or an arm that might be broke to control the air door. I want to get this part before I tear off the dash and have my Mark be down for a few days. Thanks to anyone that can help. Also if you know the name of the part I need any leads on where to find it would be great. Thanks Brian.