Why does the air coming through my a / C vents smell bad?
Why does the air coming through my a / C vents smell bad? If you notice strange smells coming from the air vents, there’s a problem. The actual nature of that problem will depend on what you’re smelling. If you’re smelling a musty/moldy smell (think dirty socks), then what you’re smelling is mildew growing in the system. Why does my air conditioner smell like antifreeze? There is a coolant smell coming from the vents. losing coolant and can smell antifreeze through the air vents once the engine is warmed up. Can't see any spills or leaks from the engine bay...