[anonimaus]

I went through a car wash with my rear window accidentally open and soaked the interior before I could close the window.
I wiped up what I could but the next day obviously there was fogging.
What I did was run full defrost with the interior temp set comfortably warm and cracked the windows while I drove.
No more moisture after a couple of drives.
This is up here in Canada in full-on winter

 

[deeve]

The Forte has been at the dealership since Thursday. As I was afraid of, they could not replicate the problem although he does believe it is happening and said it is not normal. They did blow out the AC drain line as that seemed like the most likely culprit. Nothing came out and it appeared clear, but who knows. Maybe it did something?

 

[deeve]

Not sure, what trim do you have, but this initially happened with my GT-Line as well. The car has humidity sensor on the windshield. You can pull out the cover and check if no damages to wires.

View attachment 91170

Then make sure you have activated Auto Dehumidify feature in multimedia system.

View attachment 91172

View attachment 91171 View attachment 91173

I have an LXS with standard climate control so no humidity sensor. I appreciate the recommendation though.

 

[deeve]

Well, the dealership blew out the ac drain line. Nothing really came out to indicate it was clogged but that was all they cold think to try. The problem continues still so I am going to bring it back in. There are days where the entire inside of the front and rear windows are fogged over. Here are some pics. All those photos were taken after it had been sitting a while with no one in it. One of them shows the ice on the inside. I am going to keep hounding them but each time it goes in I am without a car since they have no loaners. I ask but get told no.

 

[2023BD]

I really feel like your not using the system correct. set the temp you like then make sure your not on recirculating at all!!! Put a/c on full speed and on windshield setting, once windshield is clear switch to feet and windshield. 5 minutes before getting to location switch a/c off but fan still high and put on feet only. Do this for a few days and you should get most of the moisture out the interior.

 

[deeve]

I do exactly that and it does not make a difference. Unfortunately, my drive to work is 5 minutes long and the car doesnt get fully warmed up sometimes. You could argue that adds to the problem and it probably does but this is the only vehicle out of the three that does this. All the other ones just work.

Could be unique to the way the system works but it seems like it should not be that bad. Also, I have driven it for long drives and cleared out any moisture that could be in the car at really uncomfortable hot temps on days with no rain and it still comes back and does it. I appreciate your comments because you are trying to help, but I just dont think it is user error.

 

[2023BD]

Also, I have driven it for long drives and cleared out any moisture that could be in the car at really uncomfortable hot temps on days with no rain and it still comes back and does it. I appreciate your comments because you are trying to help, but I just dont think it is user error.

You can set to a comfortable temperature, it does not need to be hot. As long as a/c is on it should dehumidify the interior. Maybe trying letting car warmup for 5min before you leave everyday? I have had heavy moisture on a couple occasions with the right conditions but it will remedy after a couple days. The only other concern is if your a/c is actually working?

 

[deeve]

Thank you for that. I set it hot to make SURE I got everything dried out...kind of taking it to the extreme to make sure. Also, I have let it warm up for 5 minutes mostly because I have to in order to see out the window to drive. Interestingly, the Forte seems to take a long time to come up to temp. Again, longer than my other cars but that sounds normal. I am not sure the AC is working properly. The first thought I had, folks here and the technician was that the drain was clogged but that did not seem to be the case. I dont know how you can test the system but the techs should know that.

 

[2023BD]

Cabin filter is not clogged is it? If the cabin filter is clear it really sounds like a/c not turning on or a water leak that could be pooling under the carpets since you said the top of carpets are dry.

 

[Steve g]

Thank you for that. I set it hot to make SURE I got everything dried out...kind of taking it to the extreme to make sure. Also, I have let it warm up for 5 minutes mostly because I have to in order to see out the window to drive. Interestingly, the Forte seems to take a long time to come up to temp. Again, longer than my other cars but that sounds normal. I am not sure the AC is working properly. The first thought I had, folks here and the technician was that the drain was clogged but that did not seem to be the case. I dont know how you can test the system but the techs should know that.

Look under your trunk floor mat and in the trunk/quarter panels for condensation. I’m just throwing out ideas. Just a pint of water in the the trunk will cause mayhem in the cabin.

 

[deeve]

Thank both for those suggestions. The filter is good...I checked. I was hoping to find it still wrapped in plastic or something as that would explain things but no, it was good.

I will check the trunk in detail. I looked quickly but this time I will dive in there and pull stuff out.
As an aside, checking under the carpet is difficult. It is really put down tight and well fitting. It is thick too.

 

[noturbonoproblem]

Does it smell at all like coolant by chance? If your heater core had a super small leak, it could be fogging the crap out of the windows with coolant residue

 

[deeve]

No coolant smells. Boy howdy....I had a heater core go on me once and it instantly fogged up the whole inside of my truck.

 

[noturbonoproblem]

No coolant smells. Boy howdy....I had a heater core go on me once and it instantly fogged up the whole inside of my truck.

Happened to me recently too (different car than my Forte), which is why I asked