Big David

I have had this oily, watery haze on the inside of my windshield for a while. I clean it with Windex & it's back the next day. If I run the defrost on the hot setting it comes back slowly. If it sits & the windshield gets cool, it will start fogging back up. What could be causing this? Did a Google search did not find a answer.

Jgarland1987

The last time I saw this was in my chevy and the heater core was leaking and the fumes from the antifreeze was hazing up the windshield.

Turbo X_J

Yep, heater core replacement time. It's real interesting when they let loose and it's 5F outside. Trying to drive down the road scraping the ice off the inside of the windshield and it feels like your in a greenhouse...

tvaldez

How difficult is it to replace heater core ?

Jgarland1987

BAM!! Called it.
Just kidding. Sorry for your troubles since that's probably what is wrong. I can't say how difficult it will be as I have never changed one in my jeep (not yet anyways).

Good luck to you

gettin_dirty_with_ruby

You'll have to pull the dash, do a search and you'll find a how to. I did it 2 years ago and it was tedious but do-able. beats the hell out of paying someone $800 in labor

Big David

Well, I was afraid that was the issue. I smelled antifreeze in the cab for a while & I either got use to it or it stopped. I'm guessing the former.

Pretty sure the thing was replaced before I purchased it 'cause under the front passenger seat the floor looked like it was soaked at one point. I guess it could have been a drink spilled in the floor or it was replaced with a cheap heater core.

What is a good replacement? I don't mind spending money on a good heater core instead of doing the job twice. I put a AutoZone HC in my MJ & it worked GREAT but I only had it a few years after doing the install.

Also, wouldn't breathing the antifreeze, over a period of months, make you sick?

Thank you for all the replies.

prcherokee

Effects of Breathing Antifreeze Fumes
While ingesting antifreeze can cause the most harmful effects to the body, it is still not safe to inhale fumes from the product. Antifreeze fumes can cause eye irritation and upper-respiratory irritation. Additionally, inhaled fumes, particularly if from a mist, can cause breathing difficulties, headaches, drowsiness, blurred vision, irregular eye movements, nausea and vomiting.
Material Safety Data Sheets show that repeated inhalation of antifreeze fumes may affect the central nervous system. Coma may occur if the inhaled antifreeze fumes were in mist form.
Additionally, individuals with pre-existing medical conditions may be more susceptible to the effects caused by inhaling antifreeze.From the Net.

Big David

Thank you for the info, luckily I have experienced NO symptoms you have mentioned.
Better fix it before I do .