I have a 2005 Ford Freestar I don't have no
problem with the heat it is not overheating
but I have a sweetness smell of antifreeze
and when I put my heater on defroster it
mucks up the inside of my windshield
Heater core is the likely problem.
I agree with Bob, heater core.
I have the same problem but it also leaks when running for a while , would that be the heater core
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