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Heater core is probally leaking. Should be located under dash on passenger side.

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Q: Why do I Smell Coolant When the Car Heater is On?
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Why would the inside of your car smell like coolant?

Leaking heater core


Why does the car you just bought smell like radiator?

Likely as not there is a coolant leak, perhaps in the heater core.


If you are losing coolant and smell antifreeze inside the car is the heater core the only reason for this on a 2001 Malibu?

coolant smell/leakyes more than likely that's your prob. but could be maybe a hose.


What can make a car smell like it is over heating?

If it is not actually over heating, then if the smell is outside the car, look for coolant leaks around the head and the thermostat cover. Inside the car could be a leaking heater coil.


What happens when a heater core goes bad on a 1993 Audi 90?

I hope you like the smell of warm coolant in your car. Also, prepare yourself for a nice footbath of warm coolant.


Car Air conditioner emitting strong pungent odor?

Turn on the heat, and see if the same smell is there. The most likely cause is a coolant leak in the heater core, causing the coolant fumes to get into the ac.


Is my heater core defective if the inside of my car's windshield fogs up and I get a funny smell whenever I turn on the heater?

Yes. That smell is the coolant being blown into the air ducts. You might also notice a slimy film on the the glass that is very difficult to clean.


The smell of radiator coolant as the car is running?

Theres a leak. Probably a hose but could be radiator or heater core, water pump or engine core plug


Why does smoke come through vents in car when the heater is running?

The smoke you see may be moisture/steam. The heater core is probably leaking engine coolant. If the "smoke" has a sweet smell to it, it's engine coolant. More info about the vehicle such as model and year would help.


1995 Sunfire coolant is leaking from area located under steering column have already replaced thermostat and coolant in reservoir tank is full also noticed coolant smell in interior of car when heaton?

If you are getting coolant inside the car your Heater core is leaking but if only smelling coolent. The hose on the exterior maybe the issue and it maybe that the sound blanket in that area where the ends of the heater core pass thru the firewall is asborbing coolent hence the smell. This should give you a starting point hope it helps.


When a Car is overheating and the coolant is leaking and heater is not working what could this be?

If you have lost a sufficient amount of coolant this will stop the heater working because there will be no hot water in the heater rad.


Can smell coolant burning from car tailpipe?

yes