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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..

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โˆ™ 2015-07-17 17:40:47
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Q: What causes steam to come through your vents inside the car?
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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.

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

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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.

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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

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It is probably steam coming from a leaky heater core.

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You need to check and/or replace the heater core

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This is caused by a faulty heater core that has corroded and now has a leak. It needs to be replaced.

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Heating hoses are exposed and need to be replaced. The heater core is leaking coolant.

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The heater coil probably has a leak causing steam and vaporized antifreeze to be released into the vents. Is it using coolant?

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heater core needs replacement

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Why is your car blowing steam out of your vents?

The heater core is leaking coolant.

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When there is a problem in the vent system it defaults to defrost setting. Check the doors & vac supply

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Check for a vacuum leak -sounds like it is starving for vacuum and reverts to the default position

What causes steam to come into the cabin of a 1990 Mercury Grand Marquis through the air vents and the heater doesn't work?

A bad Heater Core------ IF U use Anti-freeze in your Radiator - U should smell it. also U should have water on the passenger side of the vehicle-INSIDE or outside.even under the carpet. Sounds like you have a leaky heater core, This Usually will cause the windows steam up. And is quite an involved job to replace core.

Why would a 1987 300zx blow sweet smelling steam through the vents and dash?

Sounds like your heater core has a leak and the sweet smell is your coolant.

Why would a 95 Ford Taurus blow a mist through the inside vents?

Hey Mike==If your car has A/C when it is exceptionally humid outside, it is common for the vents to blow some vapor. It is generally more visible when the sun is shining inside the car. Nothing wrong. GoodluckJoe