Frost Problem Inside of Windshield -
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post #1 of 8 Old 02-09-2011, 08:37 PM Thread Starter
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1999 TJ Wrangler 
Join Date: Sep 2009
Location: CANADA
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Frost Problem Inside of Windshield

I live in Canada, and it gets COLD. I've been getting frost on the inside of my windshield, as opposed to the outside, for some reason. I don't like to simply scrape it off because it creates ice on my dash which eventually melts inside the vehicle. The engine takes a while to heat to the point where I can heat the windshield with air, and then it takes more time to wait for the thick frost to thaw out. It's really dangerous to drive away right after I start the Jeep because of terrible visibility.

Has anyone had this problem? Any solutions, such as a spray or something?

Thanks a lot,

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post #2 of 8 Old 02-09-2011, 10:32 PM
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I have had that happen other vehicles, windshield too cold.
maby put rainex on inside? I don't know!

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post #3 of 8 Old 02-10-2011, 04:55 AM
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mine does it in the late fall when it was starting to get cold when I still had the top off. it started as just moisture but as the temp dropped it turned to ice. maybe there is an air leak somewhere? I used to carry a small towel to lay on the dash to scrape it off instead of warming it up for 10 minutes. once i put a top on, it stopped.

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post #4 of 8 Old 02-10-2011, 05:25 AM
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your driving a tent basically... Leave more time and start your jeep before you leave. If it doesnt heat up quickly then it may need a warmer thermostat and a heater core flush. My 89 will drive you out of the jeep and it has no back window. Only takes about 5 minutes to warm up enough to thaw most everything out in the front...

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post #5 of 8 Old 02-10-2011, 05:40 AM
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Might be a dumb question but does it smell like antifreeze? I get condensation that freezes on the interior roof of mine and then drips once it melts.

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post #6 of 8 Old 02-10-2011, 08:06 AM
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when it gets that cold, i like to put my top back on. its a little warmer

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post #7 of 8 Old 02-10-2011, 10:54 AM Thread Starter
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I read through a similar thread and people were suggesting to leave the window open a crack. Apparently the water tracked in from your boots will end up on the windshield since it can't escape the vehicle. If you crack the window a tiny bit, the condensation escapes through there. Not a bad idea, I'm going to give it a try. The jeep can't get any colder anyway.
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post #8 of 8 Old 02-10-2011, 11:23 AM
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Run the AC compressor while you're diriving....It'll remove the moisture from the cabin. Also, don't leave the "recirc" button on.
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