Front Windshield Fogs up fast?

[scot850]

I'll take crazy as a description over what my wife calls me for all the money I spend on my car!

Neil.

[Ben850]

The lever on the recirc. motor fails leaving the vent half open all the time.

That is why everyone is saying there is always airflow. Theirs is still cracked, broken.
Trust me, I've been there.

I've fixed it on my '93 and it shuts completely.
I have also done it on my '96 but need to re calibrate the motor.

[viper69]

The lever on the recirc. motor fails leaving the vent half open all the time.

That is why everyone is saying there is always airflow. Theirs is still cracked, broken.
Trust me, I've been there.

I've fixed it on my '93 and it shuts completely.
I have also done it on my '96 but need to re calibrate the motor.

Question guys. I have a 1995. Would I need to recalibrate the motor, how would I know/what to look for, and how does one do that??

Also, I have passenger side air bag above the box, do I need to be concerned about this at all?

Also, in removing the felt glove box liner, it seems you have to remove the glove box door as its arms go through the felt liner. Assuming that's true, how do I remove the hinges so the door can be removed, there's no obvious screws to me, and part of door's hinges are covered a bit by the box I believe too. I thought all I needed to do is remove the torx screws...turning into a project already...

[SonicAdventure]

It is def. possible to have a perfectly functioning AC unit and at the same time have a leaking heater core.

The fog from a leaking heater core is the steam off of the higher than water boiling temp coolant leaking and being blown onto the glass. This filmy fog doesn't really react like regular water vapor i.e. It doesn't go away when you cut the AC on like water based condensation ( at least not as easily. )

I just replaced my heater core last week with the junkyard heater core. Thinking back on it now after all the trouble I went through to do the replacement I probably would've just paid the 40 or 50 bucks and gotten a new one but that's beside the point now and the junkyard one I put in is working fine .

There was absolutely no evidence of coolant leaking from my old heater core, it was not until I took the entire unit out of the white box and examined it that I could see that the cooling fins and other lines were rusting and thus leaking. The replacement core was newer and isn't leaking, and after the swap I have no more fog.

As someone else said above it only takes the slightest amount of coolant leaking from the core to create that filmy fog on the glass. Usually, the presence of the fog will be accompanied by a boiling coolant scent coming from the vents. There should be nothing blowing through the vents but air - and a pinhole heater core leak will only get worse over time.

Took me about 1 hr to do the job and it was the first time I've done a heater core in my life. Watch some of the vids online and give it a shot. It's very nice to use the heat and not get that residue and smell! Good luck

[viper69]

It's odd, I don't smell coolant at all. But I have no doubt the heater core is leaking.

So assuming the film is a result of boiled off coolant. How do I get it off, what do I use. I have to admit it's annoying as hell. I've tried paper towels, paper towels and Windex.

I imagine I could use newspaper and vinegar perhaps.

I don't want to use glass wax as I used glass wax on a car one time and while it made the windshield look great during the day, at night it was full of dangerous glare. A few years later the glass wax just wiped off with a paper towel into a finely ground residue/powder. It was only once the glass wax came off that I had a nice, new clean looking windshield that was safe to drive. But that took 3 years!

[edley5856]

I was told that it could be that the "Cabin air filter" could be dirty.

[scot850]

Provided you have disconnected your battery and left the car for a while, there is no need to worry about the air-bag as it does not need to be touched during this repair. The airbag sits above the glove box.

You are correct you have to remove the door on an 850. If you look at the end of the plastic support 'crescent' where it meets the glove box door, if you look carefully there is a small indent on one side. You have to push a small flat screw driver in that indent for each bracket to release it from the door. This can take some effort and you may have to carefully push the screwdriver end in and leaver directly away from the bracket.

It may take some effort but it will eventually pop out.

If I recall again on the 850, you have to remove the hoop at the top of the glove box opening to remove the liner. There are 2 small screws in there. Take note of the position of the bracket to make sure you return it to that position when re-fitting it.

Hopefully that is clear enough?

Neil.

[cvergi01]

Awesome video to replace the heater core.

https://www.matthewsvolvosite.com/forums ... =1&t=58733

According to the thread above, the "Swedish Auto Parts" heater core on EBAY (I believe mentioned in the video) is a well built, and affordable option with a lifetime warranty!

Check out RSPI (Roberts) other videos on You Tube. I think I've watched them all, he makes everything very doable. Top notch guy!

[Sommerfeldt]

It's odd, I don't smell coolant at all. But I have no doubt the heater core is leaking.
So assuming the film is a result of boiled off coolant.

So you don't smell it, but you still "have no doubt" that the core is leaking. Can you see it, then? Feel it? Is it running down under your carpets? All cars get a film on the inside of their windows. It's from your breath, it's from exhaust, it's from natural processes and man made ones alike. Assuming is very rarely a good idea...

To remove a greasy film from the inside of your windows, you need something that cuts grease, not something that adds a layer on top of it. If your drinking glasses are dirty, do you wax them? I don't think so.

Get a cleaning agent that contains ammonium chloride, and dilute per instructions. Use this on a microfiber cloth to clean the windows. It'll cut the grease like nothing else. It smells, but only for a little while.

- S

[misha]

I was told that it could be that the "Cabin air filter" could be dirty.

Yes it can be...if the car is equipped with it.