why do windsheild fog up when temp drops

1991 FORD THUNDERBIRD
150,000 MILES
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MIRCALE
  • MEMBER
  • 8 POSTS
when temp drop window fogs up on a nice days can fill heat on leg and nothing is on
Mar 21, 2012 at 8:05 AM
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FIXITMR
  • ✓Experienced Mechanic
  • 9,989 POSTS
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?
Mar 21, 2012 at 8:12 AM
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MIRCALE
  • MEMBER
  • 8 POSTS
no anti freeze odor blower and defrost works
Mar 21, 2012 at 8:45 AM
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WRENCHTECH
  • ✓Experienced Mechanic
  • 20,760 POSTS
That usually means that you have moisture trapped inside the car somewhere, usually a carpet wet under the surface.
Mar 21, 2012 at 9:02 AM
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