foggy windows help needed

[holley10]

I have a 94 saturn and when its cold out side or raining all the windows gets so foggy inside I have to roll the windows down or be constantly wiping all the windows and the defroster works only on the windshield rear glass has a defroster install in the glass it's ok I just found the n/g and dont know if the problem has been posted before thanks

 

[Jonnie Santos]

Do you run the AC and set the temp to HOT? ...I used to have good luck with the AC.

 

[Jay Bollyn]

Make sure recirc=OFF. This is in your owners manual.

 

[Graham]

Under some conditions, a leaking heater core could be
putting a lot of moisture into the air inside the car.

 

[Oppie (4)]

Make sure that the inside of the glass is clean. Any dust or other schmutz on the glass gives moisture a better place to condense and create fogging. Use a good glass cleaner and a squeegee.

On my '01 lw300 at least, the defogger position will automatically turn on the A/C (regardless of the setting of the a/c button). Problem is at low temperatures, the a/c will not dehumidify. So, in very humid weather near freezing, the only recourse is to leave the window open a crack and crank the heat in defrost mode.

Make sure that the recirculate control is off. It may be more energy efficient to recirculate the air but if the a/c can't dehumidify it, the problem only gets worse.

Oppie

| I have a 94 saturn and when its cold out side or raining all the windows | gets so foggy inside I have to roll the windows down or be constantly | wiping all the windows and the defroster works only on the windshield | rear glass has a defroster install in the glass it's ok I just found | the n/g and dont know if the problem has been posted before thanks