Well that sucks

[CheemsK1500]

Did you lose air co

So interesting take someone on Reddit has. They say it’s not Freon coming through the vents. They say my heater core is leaking and what I was seeing and smelling was engine coolant vapor coming through the vents.

That would explain the yellow liquid that dripped on the carpet from under the dash, and dripped on the ground below the passenger side door.

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Did you lose air conditioning function though? If you did not, then it is the heater core. If you did lose AC and find large amounts of engine coolant/antifreeze in the box, then that means you have possibly blown both a heater core and an evaporator core.

The heater core plays no part in the AC function, you can bypass it entirely and still have AC if your AC system is fully functional, in fact many do so on purpose during the summer months to avoid having the hot heater core air blend with the cold evaporator core air. You should go ahead get you a set of AC manifold gauges to verify the AC system is even charged; that alone will tell you if anything blown or has a major leak in the AC system specifically.