marker227

Okay, so here's my problem...

I have a 97 Mustang GT and when I turn on my defroster with the air on MAX and the heat on full my front windshield doesn't loose the moisture it builds up on the inside.

You can actually write your name on the windshield because there's so much moisture build up... The side windows are effected too, but it's mostly the main windshield I'm concerned about.

This is a problem because when I am driving at night, any amount of light from street lights, cars, ect. will reflect off my windshield causing me to be semi-blinded. Periodically I'll have to wipe the inside of the windshield down with a towel as I'm driving just so I can see.

I've tried turning the heat on all the way and turning the dial to "MAX AC", but it doesn't do anything different and the air doesn't even come out towards the windshield.

Don't be confused with frost. It DOES get rid of snow/frost on the OUTSIDE. The inside is just more difficult...


This also only happens on cold nights.. I think around 60F and below it happens. I'm not 100% sure though.


The car has been serviced. All the coolant levels, ect. are fine.


What do you think I should do?



http://www.wholesalemarine.com/p/S-D-450150-1/

http://www.safetycentral.com/12vomiceauwi.html

What do you think about using this?

Pohatu18

turn the dial from max ac to the left all the way it should get rid of it.the air should then come out of the vents near the window in the dash. your thinking of the defrost for the rear window.

BraMas

Is your Air Conditioning working properly? The Defroster uses the Air conditioning to dry the air . So if you Air does not work your defrost will not work properly

marker227

This thread is for my FRONT windshield only.


Yes, my AC works properly. My car has been serviced. I'm not sure what's going on. It's been this way since I bought the car.




I have done that... Nothing happens. I'm not trying to defrost the rear windshield.

Choppa

wat? the defroster runs through the A/C? then why is the air hot that comes out? jus never heard of that ive had two cars with a/c units that dont work and defrost still does but the problem is just simple science there is moisture in your car and when it gets warm in there it condenses on the windows. one thing u can try is running the car till all the mositure is off the windows. then parking it dont ever park it with the moisture on the windows then itll still be there the next day its nothing wrong with ur car its the air inside the car

isjoining

defroster uses the A/C to dehumidify the air

marker227

It's not working completely though. It DOES defrost the ice on the OUTSIDE only. The inside is semi-clear, but I can not remove all the moisture from the windshield.

I've tried different temperature combinations... I've tried the A/C as well. I'm running out of ideas.

It seems that this happens the most when it's cold outside or damp.

It's not that the car builds moisture from overnight. I mean it does, but most of it goes away when the engine temp warms up and I have the defroster on full blast. Like I said, I just can't get rid of it all and I can't drive safely because of it.

Would a mini 12v windshield heater help at all?

Hicompression

If you have a very small leak in your heater core, you could have some moisture in your ducting. This would explain why when you use defrost, you are not getting rid of the moisture on the inside of the windshield, you are actually blowing moisture out of the vents. Just a thought...

marker227

It seems that it gets rid of some of the moisture, but not enough... I mean I can write my name on the windshield .

Do you have any thoughts on 12v windshield heaters?

What do you propose to deal with this issue? I don't want to go through another winter with this same problem as I did before.

BraMas

Don't go waisting $ on gimmicks.
If your A/C is working properly and your still having a problem you have excess moister in your car somewhere. Are your carpets wet where your feet go?