Ac blowing through defrost

Hello, Dave here, contributing to RepairPal and providing expert advice since 2010. This sounds like a concern with the mode door system - which directs are flow to desired locations. I believe the mode doors in this vehicle are operated by vacuum controlled motors. Check your vacuum lines before anything else - if they are detached or damaged, the mode selected for air flow will not change. If you cannot see anything obvious, I would recommend a shop near you have a look. https://repairpal.com/auto-repair-near-me Click the link or call us at 877-913-1554. We'll gladly find you a certified RepairPal shop in your area.