From he Popular Mechanics site if the smell in your car is like maple syrup:
(1) SMELLS LIKE:
MAPLE SYRUP WHEN: After the engine has warmed or possibly even after it's shut off for a few minutes. THE CULPRIT: Coolant containing sweet-smelling (but toxic)
ethylene glycol is leaking from somewhere. It could be coming from a
radiator or heater hose, a failed intake manifold gasket or cylinder
head. It might be coming from a leaky radiator cap or the radiator
itself, especially if you smell it outside the car. A strong odor inside the passenger compartment probably means a bad heater core.
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Re: Car Heater smells strange
Its not from the antifreeze its just that you probably don't use the heater at all and when you do use it it gives out that smell you should try replacing the air filter on it that should solve your problem
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Is the fan working and there is just no heat? Or is the fan not working at all. Need more info, but the smell of coolant is either a leak, a bad core, or a bad hose Is the fluid going down? more info pls
When the heater is turned on, it is drawing in air from the cowl at the bottom of the windshield outside the car. If your smelling gas when you turn it on, it would suggest to me that there may be a fuel leak under the hood. A lot of Honda's have the fuel filter under the hood against the firewall. Open the hood, and see if the gas smell is any stronger, or any gas smell at all for that matter. I would strongly recommend getting the car checked as soon as possible, if you can find the source of the smell yourself.
If you're experiencing a strong fuel smell, there's most likely a leak in the engine compartment. The AC will cool incoming air unless the "recirculate" button is pressed. The incoming air is what has the fuel smell, indicating a leak in the engine compartment. CAUTION: leaking fuel in the engine compartment is extremely dangerous and can lead to a fire. Please have the car diagnosed by a professional immediately.
sounds like you got a heater core leak,the heater core is what the coolant flows thru into your heater box in your dash to allow you to have heat,sounds like the core is leaking,by the smell and the low coolant i would say it is leaking, youll need to replace it before it blows out, you dont need 2 gallon of 200 degree coolant flowing into your car,,,