Question about 2000 Chevrolet Malibu

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2003 Nissan Ultima

My windshield defrosters do not seem to be working. It's blowing out air, just cold air. I do have heat and the back window defroster is working. Any idea's? Thanks.

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  • 319 Answers

Dzane,

its not overly complicated, but your going to have to check your switching mechanism. When you turn your cars different vents on threw either a button or turn dial or older cars a lever that you move from side to side. They move a flap inside the dash that directs the air flow. If it is not working correctly then sometimes just manually moving it around and putting a litle wd40 on the hinge mechanism will do wonders. Some of the mechanisms that move the flap are operated by vacume. In this case you need to start looking for disconnected vacume lines and also the tiniest of cracks in the vacume lines. Also a warning. if you do spray any type of oil or cylicone spray. Your going to smell it, so be sparing, and put it directly where it needs to go. Not all over the entire system.

Special not for you guys that love your Hondas and Toyotas, and some of the cars that try to mimic these cars. Dont worry I like them too, but they are so well sealled that to just turn a vent on them does not get rid of humidity in the car. You may need to turn on the Air Conditioner. I had a friend that no matter what he did he had to run his a/c all year long. For you that arent getting this part turn the heat on and the a/c at the same time. the a/c just removes the moisture out of the air. And for those of you that did get it, yes your gas bill is going to go up. Also remember Hondas and Toyotas once again are sealled so well that you still have to run the vents without the a/c at least once a day or you get MOLD, it stinks and can cause health problems.

hope this helps

tepfy

Posted on Jan 31, 2009

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Windows fog up


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Make sure the air intake grilles in front of the windshield are not blocked (by leaves or snow, for example).

On humid, do not blow cold air on the windshield. The windshield could fog up because of the difference in air temperature on the inside and outside of the windshield.

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For best results, set controls to;
Fan speed ---- Any setting except "OFF"
Temperature----Towards WARM (red zone)
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For quick heating, select recirculated air for a few minutes. To keep the windows from fogging, select fresh after the vehicle has been warmed.

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For best results, set controls to;

Fan speed --- Any setting except 'OFF"
Temperature --- Towards COLD (blue zone)
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Fan speed --- Any setting except 'OFF"
Temperature --- Towards COLD (blue zone)
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Air flow --- PANEL
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The inside of the windshield

For best results, set controls to:

Fan speed --- Any setting except 'OFF"
Temperature --- Towards WARM (red zone) to heat; COLD (blue zone) to cool
Air intake --- FRESH (outside air)
Air flow --- WINDSHIELD
Air conditioning --- ON

The outside of the windshield

For best results, set controls to:

Fan speed --- Any setting except 'OFF"
Temperature --- Towards WARM (red zone)
Air intake --- FRESH (outside air)
Air flow --- WINDSHIELD
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On humid days, do not blow cold air on the windshield. The windshield could fog up because of the difference in air temperature on the inside and outside of the windshield.

DEFROSTING

The outside of the windshield

For best results, set controls to:

Fan speed --- Any setting except 'OFF"
Temperature --- Towards WARM (red zone)
Air intake --- FRESH (outside air)
Air flow --- WINDSHIELD
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