I would think if steam is coming from your vents that you have a leaking or defective heater core and or one of its components and in most cases the water leaking from the core can be found in the floor board on the passsenger side and this needs to be fixed right away due to engine coolant loss and the possiblity of engine damage from overheating. Also if the air conditioner developes a leak it could be mistaken for steam however if the freon is lost the ac will quit. , EzForJesus

heater core..

Related Questions

What causes steam to blow through the air conditioning and heating vents in a car?

The steam could be coolant from a bad heater core.

Steam comimg out of vents on a 2001 dodge ram truck?

If the vents are inside the cab of the truck, this could mean you have blown your heater core.

How does magma inside a volcano become a lava flow outside?

The magma gushes out and then it flows every where. The volcano has vents that let air come out. When the vents open steam/ smoke comes out of those vents.

What causes smoke to come through the vents in the dash board in your 1991 deville?

could be a leaking heater core ( Steam ) . Depends on WHAT KIND OF SMOKE. Is it steam or smoke. Smoke like something burning could be oil. electrical, etc

Why does steam and mist come through your vehicle vents?

You need to check and/or replace the heater core

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