Defogging Windows without AC?

[Purple_Demon]

I am curious to what methods everyone uses to defog their windows if they have deleted their A/C.

I am in the middle of my build and my car does not have A/C and I had no intentions of re-installing it. But I also live in Ohio so we get a frequent amount of rain and causes my front window to fog up. It will also fog up during cool mornings/nights.


Does anyone have any methods to defogging windshields without the a/c? I tried carrying microfiber cloths around, but they wind up dirty and smearing the window.

 

[DeadlyScone]

Roll yo windows down homie. that or turn the heat on blast.

 

[stracer107]

Roll yo windows down homie. that or turn the heat on blast.

This sir does not always work. Your defrost works with the ac system to pull the moistre out of the air inside of your car.

 

[WES_393]

Windows down, heater on high, set to defrost, and flip the lever to vent. Works for me, even in sub-freeing temps.

Just remember to bring a jacket and never wipe the windows!

 

[Purple_Demon]

If I wipe the windows it is always with a fresh microfiber cloth.


So if it is pouring rain and middle of summer....what do I do then? .

In my DD I just slap the ac on full blast and drive.

 

[stracer107]

Drive it only on nice days

 

[DeadlyScone]

Windows down, heater on high, set to defrost, and flip the lever to vent. Works for me, even in sub-freeing temps.

Just remember to bring a jacket and never wipe the windows!

See, i wasn't lieing to you.

 

[Purple_Demon]

Ever heard of the state of Ohio?


Days can start out BEAUTIFUL......and turn to complete rainy hell XD



Ive tried those rainX wipes but they are junk

 

[WES_393]

So if it is pouring rain and middle of summer....what do I do then? .

Buy a raincoat?

Condensation is just moist air contacting a cold surface. As the glass gets warmer and the air gets dryer, less condensation you'll get. So experiment with the air controls to find out what works best. Even little habits like letting the car air out before parking can make a huge difference. You could also try a 50/50 of water and vinegar to treat the windshield.

But coming from one of those weird people who drive their AWD car in poor weather, it's really not that bad.

 

[DSM1G90]

Air selector on "FRESH' (the symbol with the air coming from the outside of the car) and turn on the fan. Outside air comes in via the fan which pressurizes the cabin and this moist pressurized air inside the cabin, exits out the sides of the vehicle - which are located in the side moulding.

For AC: you do the reverse since you want to keep air inside the cabin. Thus, you want the air selector to "RECIRC' (the opposite symbol with the circular arrow in the cabin) to recirc the air since the evaporator takes the moisture out of the air and the fan blows the dried air though the vents. This action creates equal air pressure to the outside air pressure.

For winter driving, you do the same as the first paragraph: selector on "FRESH' to heat up the outside cold air and the fan will push out the moist interior air so no fogging will result.

 

[undefined0000]

The heater method never worked for me , so I just deleted the HVAC controls for gauges. I just sit a little space heater in my car before I go out in the morning

 

[necrotopsy]

like others have said, vent open, thermostat to all the way cold. takes a little long than with A/C but it does work.

 

[DEADKITTY]

roll the windows down or try using the heat. just remember not to try to wipe off while driving.

 

[warren]

Well next time don't deleted your ac so what you do is buy some goggles and brake the front windshield. And there you go your window won't frost anymore . Lol
Try to always have vent toward the window thing and have the window alittle bit crack . If you got a sunroof open it water shouldn't get it .

 

[DSMnoobsause]

I live in Oregon so it rains all the time. Never had any issues with using defrost on fresh air. I have no ac in the car. If you are having issues with fogging windows to where defrost doesn't work. Then you need to fix whatever water leak you have.

 

[TurboLaserRS]

Ohioan chiming in here. It was like 29 degrees last night and I don't have AC either. No problems with fogging once car was up to operating temp. Turn the mixer knob to the red color, flip it to defrost and turn on the blowers. Thawed out like any other car I've had. The only problem I can see is if the humidity is insanely high but I've been driving her for 6 months so far ran or shine and haven't had any problems to date.

 

[gusu]

Walmart and other stores sell tiny heaters/fans that plug into your cigarette lighter. I use to put that up by the windshield and let it defog it Sadly my girlfriend broke it.


Anyway, they are cheap and constantly being clearanced because of new versions.

The one I had started blowing hot air about 10 seconds after turning on my car. It was a great alternative when my blower motor died and it was too cold for the guys at our local pick a part to feel they should stay open. Funny enough the day I got the blower motor my windows were fogged to shit and it started snowing when I was almost there. My girlfriend had broken the mini heater already so I had to go with out heat for a couple weeks.

Now that I think about it, its kind of funny the warmest day in nearly a month was the day it decided to snow.






Forgot to mention those things typically go for 19.99.

 

[dfootedsm]

Thanks for this Post I am removing my condenser and compressor when I do my motor swap!

 

[randman2011]

Haha talk about back from the dead! Since it is already back, I am from Ohio. In the six years that I had my car, AC was only ever used for defrost. When my condensor was taken out in a crash, the AC was removed during my engine swap. It has only been a month, but thanks to Ohio weather we have already experienced all four seasons. Setting the knob to defrost directs air directly onto the windshield, which is best. Depending on the weather you may need heat to melt frost or cool air to draw the moisture away, but one of the two has always worked for me. I have no regrets removing my AC even though I didn't have a choice.

 

[92GVR4SC]

clean the inside windows real good, then treat them with rain x anti fog. Put the AC back on the car..

 

[dfootedsm]

I was playing with my DD car on the way to work the other day I found that when I turn the heat on and do not recirculate the air it seems to defog the windshield. My DSM would be a summer driver only . I am doing a full swap interior wire harness rear subframe and motor. So I was cleaning my engine bay removing things AC lines condensers driers and charcoal canisters and I thought hmmm lets get rid of this damn compressor too! Thank you for the input it really helps

 

[evo-gsr]

Rain x anti fog wipes here too!

 

[97 eclenger]

ya, i know what not having a working ac does in rain. My other car had ac in it but ac had a leak over the winter. short story, windows fogged, defrost on full, nothing so window down, still nothing. black water, hit a box truck. Best advise, wait till its clear to drive

 

[crimsondragon]

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