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Fogged windshield

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Old Dec 10, 2010 | 08:43 AM
  #1  
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Fogged windshield

Im having trouble with fogged up windows! I was thinking it was my heater core.It doesnt appear im losing antifreeze(Nothing on my rugs).I have heat my blower works on all speeds.No real antifreeze smell.
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Old Dec 10, 2010 | 09:15 AM
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Re: Fogged windshield

Originally Posted by blackroc68
Im having trouble with fogged up windows! I was thinking it was my heater core.It doesnt appear im losing antifreeze(Nothing on my rugs).I have heat my blower works on all speeds.No real antifreeze smell.
I'd drop the hush panel and take a peek.

JamesC
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Old Dec 10, 2010 | 09:21 AM
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Re: Fogged windshield

Couple things I can think of. Your vents arent't switching from the other positions so its blowing elsewhere. Heater core could be blocked up. If your not getting heat anywhere do a reverse flush on the heater core. If you are getting heat, check to see if the blower changes vents when you use the switch. Temp switch could be bad as well, stuck in the cooler position despite its postion. I'd try those three things
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Old Dec 10, 2010 | 09:35 AM
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Re: Fogged windshield

I have very good heat blowing directly on windshieild! Also switches with selecter to vents.No antifreeze leai on floor.
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Old Dec 10, 2010 | 10:21 PM
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Car: 1989 Iroc-Z Camaro
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Re: Fogged windshield

Even with everything working the way it should I use Rain-X.(interior glass anti-fog.)Works great.
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Old Aug 6, 2016 | 10:54 PM
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From: Mid Tennessee
Car: 2010 SS Camaro
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Re: Fogged windshield

Just purchased a 2010 SS Camaro V8 manual shift with only 10,000 miles.(mint condition!) Still have the same problems most everyone else had, fogging of front window no matter what setting its on. Did anyone ever figure out how to correct this problem, having to continually use my wipers!

Last edited by gray&silver2010; Aug 6, 2016 at 10:58 PM. Reason: Typos
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Old Aug 7, 2016 | 06:23 AM
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Re: Fogged windshield

Originally Posted by gray&silver2010
Just purchased a 2010 SS Camaro V8 manual shift with only 10,000 miles.(mint condition!) Still have the same problems most everyone else had, fogging of front window no matter what setting its on. Did anyone ever figure out how to correct this problem, having to continually use my wipers!
First off, welcome to ThirdGen. Please fill in your information, like location and vehicle, so that we can always see what you're working on and where you are at. (Location plays a role in answering this question.) Click on User CP, then Edit Your Details, to add information.

If it truly happens at ALL settings, you need to find the leak, but I doubt it's really all settings (like hot & defrost). This is likely normal. I'll assume, with no information on where you're at, that it's hot and humid outside and you're cranking the AC max cold. This is like a cup of ice water sweating on a hot, humid day; except the cup is your windshield and the ice water is your max cold AC air.

Another annoying trick of these 5th gens is if you point your center IP vents down, you'll do the same fogging to your radio display. (also normal)

This is all physics really, since you can't change the humidity/temperature of outside air, you live with it until the weather changes, or move to a dryer region.

I hope that helps explain why it's normal, but if I have completely misunderstood your situation with too many assumptions, give more detail and I'll take another swing at offering to help.
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Old Aug 8, 2016 | 10:53 PM
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From: Mid Tennessee
Car: 2010 SS Camaro
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Re: Fogged windshield

Thanks for your reply,your right it's terribly humid and hot here. I'll see if it changes with the weather (just my weekend car) if not I'll investigate further.
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Old Aug 8, 2016 | 11:21 PM
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Re: Fogged windshield

My car has the same problem but it only seems to happen in the early morning hours. No signs or smells of coolant, just a lot of humidity. I took this early Saturday morning.
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Old Aug 9, 2016 | 03:40 AM
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Re: Fogged windshield

Originally Posted by GASPEDDLER
My car has the same problem but it only seems to happen in the early morning hours. No signs or smells of coolant, just a lot of humidity. I took this early Saturday morning.
Yes, this is like dew forming on grass in the morning, or when condensation forms on the glass of cars, or siding of a house not yet in direct sunlight in the morning. I think, whether by design, or by wear and old age, that a certain amount of AC cooled air bleeds past the defrost valve, cooling the windshield to the point that humid air condensates on the glass . Some cars seem to bleed cooled air to the windshield more than others. I remember an 89 Grand Am doing this more frequently than any other car I owned as a kid. Of course that car had great AC also.
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Old Aug 9, 2016 | 09:47 AM
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Re: Fogged windshield

Originally Posted by Lurbie
Yes, this is like dew forming on grass in the morning, or when condensation forms on the glass of cars, or siding of a house not yet in direct sunlight in the morning. I think, whether by design, or by wear and old age, that a certain amount of AC cooled air bleeds past the defrost valve, cooling the windshield to the point that humid air condensates on the glass . Some cars seem to bleed cooled air to the windshield more than others. I remember an 89 Grand Am doing this more frequently than any other car I owned as a kid. Of course that car had great AC also.
Looks like my 88 the other morning at 6am here in Huntsville. It was 80 outside and very humid. But....a very cool 40* inside!!!
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Old Aug 9, 2016 | 10:19 AM
  #12  
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From: Mid Tennessee
Car: 2010 SS Camaro
Engine: V8
Re: Fogged windshield

I do understand the principles behind what's happening but we have 3 other cars and this doesn't happen with either of them. The pic of Lurbie's windshield is minimal compared to my SS.I literally have to use my wipers all the time. But hopefully a change in the weather will change that! Thank you for you post!
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