> > Wwhen I run the defrost, no matter what temperature I run the
> > defrost at (or fan speed), there is an excessive amount of
> > moisture on the windows. Is this a sign that the heater core
> > is going bad?
> If it was the heater core you'd be smelling the antifreeze. Is
> you A/C working properly? Without the A/C compressor running,
> you will not dry the air out before it hits the window and makes
> defogging the windows pretty hard.
I don't have a great sniffer when it comes to antifreeze for some reason, so I would still suspect the heater core.
Also, I was able to defog windows in cars w/o AC, so even though it
helps, i wouldn't call it necessary.
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