Defrosting issues

[gig]

I have an 04 CS, owned since brand new, this winter I am now having defrosting issues, the defroster is having trouble getting rid of the condensation within the car, is this a freon issue??? anyone know?

[JeTexas]

Is it blowing steam that smells like coolant out of the defroster vents or is it just not working?

[gig]

the defroster fan comes on full blast (lots of heat) yet it is having trouble dissipating the fog on the glass quickly. I know that some defrosters use the A/C to work quickly, that's why I wonder if it's a freon issue.

[RFM]

I would check the R134a quantity anyhow, gig.

[gig]

thanks RFM

[h2ostruyk]

I know it's been a while since this thread started, but did you ever resolve the issue? I am having the same problem, especially when it rains. The intake area is dry, so not getting water into the fresh air intake, and the intake drain is clear. I suspect it may be the air quality sensor under the hood just inside the fresh air intake, which I believe measures intake air humidity to control the A/C. Thanks.

[wvicary]

Air quality sensor measure pollutants. Inspect the cabin filter and the operation of the recirculation door.

[NelsonMX]

I agree with wvicary......I was having similar issues, so I changed the cabin filter. It was VERY dirty.....Since then it is much better.....

Bob

[ManMN]

If you have cold air coming out in the summer then it's not freon issue. It may be the controls that don't cycle the AC when it's in defrost mode. Just a thought.

ManN