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Prelude taking too long to unfog

 
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Old 12-15-2012, 01:22 PM
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Prelude taking too long to unfog

So winter is coming along, and every morning windows are foggy. Back window gets unfogged quick, but all other windows take a long time. It worked fine earlier this year, but now it takes a long time. It just unfogs the little spot were tha air directly hits the front window. Anyone know what could be wrong?
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Old 12-15-2012, 01:51 PM
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Re: Prelude taking too long to unfog

I assume the fan's making all the right blowing noises, so it's probably either a deflector door not opening all the way when you select "Defrost", or something blocking the duct. When you hit the "Defrost" button on the climate control panel, do you hear the doors move?
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Old 12-15-2012, 02:02 PM
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Re: Prelude taking too long to unfog

I do hear the fans move. Were could these "doors" be located? I was also told that the condenser or something like that is leaking? Something because you need the humidity from the AC? Not sure but I need this fixed soon :/
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Old 12-15-2012, 03:11 PM
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Re: Prelude taking too long to unfog

Yeah if you notice when you turn it onto defrost it makes the ac button light up. also the back is always going to defrost faster because it uses the wires in the glass and the front window has to wait for the engine to heat up, thermostat to open and get coolant flowing through the hoses and black. also as it gets coldr outside it's going to take longer to warm up and defrost.
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Old 12-15-2012, 03:53 PM
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Re: Prelude taking too long to unfog

move to florida i never had that problem lol
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Old 12-15-2012, 04:58 PM
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Re: Prelude taking too long to unfog

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Originally Posted by petapanda View Post
I do hear the fans move. Were could these "doors" be located? I was also told that the condenser or something like that is leaking? Something because you need the humidity from the AC? Not sure but I need this fixed soon :/
The doors are inside the ductwork, to deflect air through the various vents. Hold your hand over the defroster vents -- if you're getting strong airflow through there, the ducts aren't the problem.

Could be an air con problem...the air conditioning system also dehumidifies the air, so the defrosters use the system to blow dry air on the windshield and speed clearing moisture from it. If your air con needs recharging, or there's a leak in the system, that could also be a cause.

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move to florida i never had that problem lol
Only for you warm weather wimps down south. :) Gets nippy up here in January and February! (All you guys further north in real winter...I did my time in snow and ice...not anxious to go back!)
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Old 12-15-2012, 05:10 PM
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Re: Prelude taking too long to unfog

i hate how the ac turns on all the time. its freezing im hitting defrost to warm up not freeze more haha and your not a human if you dont experience winter weather. not as good of drivers either. no effense lol
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Old 12-15-2012, 07:13 PM
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Re: Prelude taking too long to unfog

make sure the heat is on all the way, and the ac turning on just dehumidifies the warm air, doesnt make it cold, which makes sure dry air is blowing on the window. the previous owner of my car unplugged the wires for the ac switch and put an extra switch on the dash by the right side of the radio for ac. i like it because i don't want my ac kicking on everytime i defrost the window.

you could replace your thermostat to make sure it is opening completely and soon enough to make sure you are getting hot air blowing against your window. its only a couple bucks and not hard to do.
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Old 12-15-2012, 11:00 PM
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Re: Prelude taking too long to unfog

Before I kept my Prelude in my garage every morning I'd just get a clean rag and wipe down my windows mines took forever to unfog also.
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Old 12-16-2012, 01:37 AM
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Re: Prelude taking too long to unfog

I'll just cover this: make sure that the vents on the door are open. Sometimes it's the obvious!
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Old 12-16-2012, 06:04 AM
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Re: Prelude taking too long to unfog

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Originally Posted by 01PreludeBlue View Post
Before I kept my Prelude in my garage every morning I'd just get a clean rag and wipe down my windows mines took forever to unfog also.

so thats why all my rags are gone!
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Old 12-16-2012, 09:23 AM
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Re: Prelude taking too long to unfog

Lol at some of the responses. I haven't been able to check so I'm going to look around today. Yes all doors are open lol. I'm going to see if I need a recharge or if there are any hoses that are unhooked and or leaking. I have noticed that my feet get more air than usual so that may have something to do with it
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