Q: My air vents smell like coolant when I just run the air. In the morning I turned it on and a little bit of smoke came out with the

Hi Chris. Thanks for contacting us today. Usually, when you smell coolant from the vents, it’s caused by a coolant leak near the heater core. It could be the core itself, a coolant hose or a hose connection that has split. You should probably have a professional mechanic locate the source of the leak sooner than later, as this could lead to overheating issues.