Re: When the heat is on it blows steam, fogging up my...
Yes, the heater core is leaking coolent and when the heat is turned on , the evaporated coolent is what is steaming your windshield. Replace the heater core to solve this problem.
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Heater radiator leak.It is under the windscreen and can blow hot water (vapor) to the glass.Does it slightly smells heated water?Very rare:rain water in the saim compartment as the heater having the same simptoms.Track the problem,ceck coolant level regularly.Cheers,hope u deal it,let others know.
If your windsheild starts to steam up while driving your heater core has a leak causing this. Also you may receive the smell of burnt coolant before the fog starts activating. Best thing to do it get it repaired asap. Your coolant level will go down everyday you keep driving this way. The smell will get you sick to your stomach as well
what you describe is a leaking heater core,which will leak fluid into the passenger side floorboard,the "sweet smell is antifreeze,if you have in the radiator at this time.if you have the defroster on,the windsheild will fog with a sticky substance,left over steam from the cooling system leaking into the cars interior. the only way to repair this issue is to have your heater core replaced. it's a job! under the dash,behind the glove box, and the external hoses to the heater core are under the hood at the passengers side,just under the windsheild,but what we call the firewall. you will see 2 black hoses protruding through the {firewall,or dash from outside) those hoses will need to be removed,as well, as along with 35 screws under the dash to replace the bad heater core. suggest you call around for prices.the heater core itself ranges in price from 35.00 to 65.00 but the labor is the bang! research local garages for prices,but you have until cold weather to replace it,only because the heater core supplys heat to the inside of your vehicle. good luck,and i really mean research now,because most garages are not dealing with such issues now,due to warm weather.thank you for choosing fixya.com!
no heat is probably low coolant or bad thermostat,although you have fog and smell ! the heating and cooling systems are closed systems the only way the windows fog is the coolant is hot and steams inside the car due to some leak inside the heater core box. as well as the smell being present. Now it is possible that a little leak has occured where the coolant supply or return line connects to the heater core and is running into the car which is running onto the core and creating steam and smell. hopefully it is a easy clamp tighten fix for you.
Make sure the vent system is set to draw air from outside. If it is set to recirculate the same air that's inside the vehicle without drawing fresh air from outside, the resulting humidity that builds up inside the vehicle can fog the windows even when you run the defrost. You can also try opening the windows a bit to get some more air moving inside.
If it still fogs when the vents are set properly, you may have a leaky heater core. The heater core is a small radiator that is located under the dash that the heater system blows air through to heat the inside of your car and provide heat to defrost the windshield. The fog may be coming from the heater core leaking hot coolant steam that's being circulated through the defrost system. If this is so, you will need to replace the heater core.
If you feel warm air blowing up on your windshield and If your heater is working, I would guess its a coolant leak, probably the heater core. Usually a coolant leak will leave a kind of "greasy" fog that is more difficult to wipe off. It is basically steam coating your windows. You should be able to smell coolant if its leaking. If no warm air is blowing, I would guess an issue with your heater control module or a vacuum problem of not supplying vacuum to move the plenum door.
If the heater core is leaking it will blow steam out onto the windshield fogging it up. Check your coolant level in the radiator. Check for wet carpet near the heater blower motor. Is it blowing hot??
Sounds like the heater core is leaking coolant. If it is leaking it will blow steam out of defrost vents and fog the windshield. Symptoms: low coolant level in radiator, steam coming out vents when engine is warmed up, odor of anti-freeze coming out of vents, wet carpet in floorboard near heater blower motor. If so, replace heater core.
Your heater core has a leak, it's like a small radiator that heats up and the blower motor blows air thru it to create heat in the car. It is leaking anti freeze into the heater box.
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