Mechanics

WHY DO WINDSHEILD FOG UP WHEN TEMP DROPS

1991 Ford Thunderbird • 150,000 miles

When temp drop window fogs up on a nice days can fill heat on leg and nothing is on
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Mircale
March 21, 2012.



Window fog usually means heater core seep/leak. Do you smell anti freeze odor inside? Are you saying blower air does not come out of defrost? Only on feet? Controls dont work right?

Tiny
Fixitmr
Mar 21, 2012.
No anti freeze odor blower and defrost works

Tiny
Mircale
Mar 21, 2012.
That usually means that you have moisture trapped inside the car somewhere, usually a carpet wet under the surface.

Wrenchtech
Mar 21, 2012.