Works fine when start car up and drive it a bit. Then starts to come out of my dash vents. When I open winduabd ket cold air in it drops to floor. Mechanic unable to resolve. Extremely frustrated. How do I resolve issue.
What makes this problem better or worse?
Better when I open windows open
How long has your 1993 Cadillac DeVille had this problem?
Could be a blend door motor or flap. I suggest getting a second opinion. There are many possibilities and it will be difficult to diagnose without looking at it.use this link to find a good shop near you.
https://repairpal.com/repair-shops
Alex
RepairPal Certified shops can diagnose and repair your 1993 Cadillac DeVille. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.