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If the heater has a sweet smell it could be that the heater core is leaking engine coolant. When the leak gets worse you will have a wet floor on the passenger side and the windshield will fog up when you turn on the defroster.

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13y ago
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16y ago

white air that smells like antifreeze coming out of heater, indicates that you need to replace the heater core in your vehicle.it is leaking

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11y ago

You have a coolant leak somewhere in the system, possibly in the heater core.

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Q: Why do you smell antifreeze when you turn on the air conditioner?
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Why does the air coming from your home air conditioner vents smell like stale smoke but not when your heater is on in a duplex where the other family smokes?

This has much to do with how the air conditioner and the heater is vented. If the air conditioner draws its air from outside it could be picking up air / smell of smoke from the other family and then redistributing it into your home. A heater on the other had usually has a heater input vent within the house it is heating (it draws the interior air in and then heats it blowing it back out) as the air within the home will be significantly warmer than the exterior air.


If I turn off the car engine will my air conditioner keep running since the control to turn it off is broken?

No. The air conditioner is driven by the engine crankshaft, so it will not turn if the engine is not running. Just so you know, you are wasting a lot of gas by driving around with your A/C engaged all the time.


Why would only cold air come out of the vent when you put on the heat or the defrost I have checked the panel switches that does not seem to be the problem?

AnswerCheck your heater core, do you smell antifreeze at all?no


Air conditioner 1998 riviera?

The 1998 Buick Riviera air conditioner compressor is located in the engine compartment. The air conditioner compressor will be on the left-hand side of the engine.


Why would a 2004 Kia Sedona air conditioner smell like strong vinegar?

Take it back to the dealer. The AC drain is Blocked OR the Heater Core is Leaking.

Related questions

What is green air conditioner coolant?

AntiFreeze


Do you need antifreeze in the radiator to run the air conditioner in a car?

No


Does the air conditioner in your car start when you turn on the air conditioner?

no


Smell coming from reverse cycle air conditioner?

A smell coming from a reverse cycle air conditioner may be a signal that the filter needs to be cleaned. A smell like engine exhaust might be present if the air conditioner motor is in need of repair.


What is the horrible smell when you turn on your air conditioner?

It is likely germs and fungus in the air conditioner. You can use a spray product to clean it. If the evaporator is leaking you will get a very bad order. You will also start loosing your freon, then no a/c.


You have water on the passenger side floor on your 2000 dodge caravan from the air conditioner?

It sounds like the heater core is leaking. Check for the smell of antifreeze and that will confirm the bad heater core.


Why do you smell ammonia when the air conditioner is working?

It sounds like there is a leak inthe evaporator section of your air conditioner. If this continues, the air conditioner will no longer cool and you may have to replace several components of the system. The smell is that of atomized esther oil.


Does antifreeze have anything to do with air conditioning?

No it does not, it has to do with the cooling system of the engine and the heater. Refrigerant is used in the Air Conditioner.


Is the heater coil going bad on my 2001 ford f 150 if I smell antifreeze coming through the air vents if I turn the air controller to off I do not get the smell anymore?

More than likely the heater core is leaking.


Why does the air conditioner smell like vinegar when turned on?

because you have too many dead babies in your air conditioner tank


Why does air conditioner smell like smoke when turned on?

An air conditioner should not smell like smoke when turned on (or when turned off). I would have to suspect that the electrical insulation is burning.


How do you get rid of moldy smell from home air conditioner?

clean it, then spray it with air freshener.