- This topic has 11 replies, 5 voices, and was last updated 10 years ago by
.
-
Topic
-
My car’s Windows fog up on the inside every winter. Usually when the car warms up the windows stop fogging however today it didn’t clear up. Defrost on full and all windows fog. I had to scrape the INSIDE of my windows like 4 times today alone usually once before I take off is enough.
The A/C is shot It never worked from the get go…. Since they served no purpose I removed several Relays from under the hood and maybe one of them is causing this problem to be WORSE than it’s always been. The replays i removed are : A/C Compressor Relay and Fuse, A/C Fan Relay (The replay to trigger the Fans to turn on when A/C is in use not the Individual Fan replays) and the Power Window Relay as the car has no power windows or a sunroof (the only 2 things the Power Window Relay is for)
On a related note, My doors are starting to freeze shut this year. Today was the 2nd time this year with the 1st being earlier in the month. I know Eric has a video about putting Silicone on the door rubber but I would not want to have to do that in this cold if I do not have too.
-
Replies
-
If by “scraping” you meant clearing off fog or moisture then this applies if you meant ice ???
Here’s the thing if you use the defrost on warm it has to warm the glass and the windows to be close to the same temp as the inside air which gets warmer & moister the longer you are inside the car. If your heater/defrost is weak the side windows will fog. If you can stand the temp inside you want the air intake to be set to take in outside air which is closer to the temp of the glass and will clear it faster.
Don’t know anything about the relays but I am told my defrost works off the AC and my AC don’t make cool air but the defroster does make warm air so?????
Crack a window open a bit if it gets real bad, the problem is the air temp inside is a lot warmer than the glass temp.If the door mechanism is freezing up it may be the lubricant, otherwise I am unsure maybe water is getting inside something.
i take a ice scraper to the inside windows. I know the A/C helps with defrosting however as i mentioned the A/C doesn’t work never has since the car was new.
I DO have the HVAC set to take in outside air but i guess the Ice plugging the Air Intake vents for the HVAC system don’t help the situation any. I can’t seem to be able to get the ice off the intake vents. I have ALWAYS cracked a window. Since the A/C has never worked cracking the window was the only way to prevent it from fogging up. Only problem is that its never fogged up this bad it’s usually ONLY the windshield that fogs up the side windows rarely do however today EVERYTHING fogged even the rear window which NEVER fogs.
P.S. I think people think in crazy to have my Windows down in winter… I’m literally the ONLY on that does it 99% of the time I drive… LOL I am also lazy if the heat gets too warm i just open a window (in other car) rather than turn the heat down LOL.
Question: Does the Radiator Fans turning on have anything to do with the level of heat for example… If the fans run will i get more heat from the HVAC system than I would with the fans off?
My AC doesn’t work either but the defrost gets warm and I have heat. If putting the relays back in doesn’t get the defrost to warm up I don’t know what to do. Maybe someone else will post a response.
the radiator fan draws air through the radiator to cool the coolant. Some people will partially cover the front of the radiator with cardboard in winter to reduce the effectiveness of the rad making the engine warmer which makes the heat better. That’s what those zip up covers over the front of Big Rigs are for. I do not recommend it since I don’t know your car or you. I suspect you may be having to get to a mechanic if no one else comes on here to offer advice.
Maybe I should try that… I yanked the relays just before the snow fell so this was like late October or 1st week of this month. I will get the Relay and fuse for the A/C back in and see if that helps. Main reason i pulled them was to use the Replays for some aftermarket fog lights i plan to get for the car.
Fortunately for me, the Radiator fans RARELY ever come on in the car. The only time i have EVER had them run was when the car overheats. In winter it never gets warm enough to turn them on. I suppose a alternative to covering the rad with cardboard would be just to pull the relays for the fans…
1. of course, #1 way to prevent fogging is not available…..
2. Do not blow air at the windows UNTIL engine reached at least some operating temperature. What you have is a lot of moisture collected in air ducts. When you run air onto the windows cold, it only adds more condensate to the cold surface. When you run engine for a while before turning on your blower, you have most of that moisture naturally evaporated by then.
3. old TN trick. Liberally wipe inner glass surfaces with rubbing alcohol.
4. try Rain X on the inside, it works for some.
5. My favorite. Buy window visors and keep windows cracked down a little bit. Common sense tells you that this will allow moist air to escape out. Driving, keep both pass side windows cracked down some. It usually creates (depending on vehicle inside shape) a nice circular draft, defogging rear window and the rest
6. here’s the thing. If you had alcohol drinks a night before, windows WILL fog. It’s the breath. Can’t help.Window Visors is on my list of things to get for the car. I will put the A/C fuse and relay back in tomorrow and see if that helps.
How will fuse for non-functional AC help? It’s WORKING AC that de humidifies air, not idle ac comp spin. Don’t waste time and money on that.
Btw, DIRTY windows inside act like a sponge for humidity, so scrape them with blade and clean well. And NEVER touch them with hand, you screw them up instantly. Something in human sweat that does this. Use a rag.Thanks for that tip. I get paid in a few days and ill get some RainX to put in the windshield see if that helps the inside windows have been dirty for years
Blacken, not to be rude but some of the things you come up with would have even Scotty Kilmer making this face – :huh:
If the A/C does not work due to the relay missing – yeah that might have something to do with it.Why not just get some good paper towels and Glass Plus or Windex and give the inside of the windows an HONEST cleaning as a first step?
Then go ahead with the rain-X.Not that anyone cares but the “something in human sweat” that can ruin a glass cleaning is called sebum. It is the oil that our skin produces.
Your windows are fogging up because of moisture in the car. The easiest solution is to remove said moisture. Drive with the window(s) down a bit so you get some raw air circulation. That reminds me, if you have the recirculate option for your HVAC controls DO NOT USE IT IN WINTER!!!! Try to keep the floormats clear of any excess snow or ice, if they are iced up just throw them in your tub or something to thaw out. And yes a GOOD cleaning will decrease the amount of fogging you get on the inside.
- You must be logged in to reply to this topic.