On these latest frozen mornings, I have noticed I am getting quite a bit of frost, or sometimes ice inside my car. It's a pain, and the heat rarely warms up enough to melt it away without driving, and I don't plan on driving with a frozen windshield. This is the first year that this has happened to me. Any advice?

 

figure out where all the moisture in the car is coming from.... that would be one thing i would do... Another possibilty would be to get some of that rainx stuff for the inside windshield.. that shuold repel the moisture and make it alot less likely to fog or frost. I Usually get frost inside the car only when i forget to close a window, or it is on the rear hatch... because of the air leak i have back there..

 

Would a cracked windshield let enough in? I wouldn't think so, but that's all I can think of... Also, I have RainX on the outside of the windshield - and that frosts over too. I don't think it would do much inside either.

 

the stuff for the insde and outside are two different formulas... the one on the outside is not supposed to stop it from frosting. the one for the inside is... A cracked windshield probably wouldn't have alot to do with it unless the crack was severe enough to let air in somewhere.. The snow on the floormats might cause it.. but I have never personally experienced it from that.

 

I had a crack develop in my windshield over the weekend. Every evening since when I went to go to work, it was frosted on the inside and outside.

Had the glass replaced yesterday, NO more frost. you do the math.

ps I had NEVER had the inside frost up before this, in almost 2 years of owning the car.

 

Sounds good to me, because that's the only difference I have. And it's never happened to me before this. Thanks! Anyone know some good glass people? (My best quote so far has been $230 installed)

 

Or, you have a leaking heater core. It's allowing moisture into the car with the heated air.

My $5 sez that's it. A cooling system pressure test will tell for sure. The suggestion that wet floor mats/carpet is a sound one, but usually, that doesn't show up as moisture on the windshield, unless it's warm and sunny and you get the greenhouse effect.

By any chance, you don't have your controls set on recirculate, do you??

 

I don't have that option. I have hot/cold, fan speed, and where the air comes from (i.e.; defrost, vent, heater, ac, max ac) and that's it.

 

I'd check the trunk/wheel well for standing water

 

Yeah, don't have any of that. It's just frozen water.
I'm guessing the crack has something to do with it. As for standing water, I have the minimal amount from my shoes on the mats.

 

What kind of car is this?

 

The one I'm talking about is a 98 Sonoma...

 

A car I had a few years ago would do the same thing, and it too had a cracked windshield. I however never got it fixed because that would have cost more than I paid for the car