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Old 11-18-2009, 12:09 PM   #1
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Getting steamy inside.

Hoo boy, I must have done something to get my little 89 wrangler excited because it decided to start getting steamy inside when I drive it now,,
There is vapor coming out from under my dash, even fogged up the inside of the gauges and my stereo.
It`s my heater core isn`t it?

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Old 11-18-2009, 12:33 PM   #2
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move to ocean shores. hey rainy, not sure about the heater core, but i'm steaming up too. i attribute it to the recent weather we're having.

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TREAT EVERY STRESSFUL SITUATION AS A DOG WOULD.
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Old 11-18-2009, 12:47 PM   #3
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If it is the heater core, you would expect a strong odor of antifreeze. A possible culprit it water in the vents. I know when my drain hose gets clogged, water is retained in the vents, and when I put on the fan with any heat, it fogs up the interior in a hurry, including everything in the dash. It will keep doing this until I spill ALL of the water on my feet by taking turns at speed, and I need to run it at max heat for a while. As soon as I get the chance, I'll get under the hood and clear the clog and drain the hose, then this problem is abated.
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Old 11-18-2009, 01:16 PM   #4
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Thats when it happened, was when the heater was on and I was also wondering why there wasn`t really any antifreeze odor, just lots of vapor. Looked like a sauna inside.
So bro, where is the drain hose are we talking about here? Or is there any certain way I should turn?, Left or right?..*lol*
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Old 11-18-2009, 01:25 PM   #5
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the drain hose is in front of the passenger seat,under the hood, on the firewall. it has a spring action at the bottom. squeeze and find things you never thought existed. i pour boiling water down mine to kill and growing stuff. some folks cut the spring off but this allows fumes from seattle transit to be drawn in.
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TREAT EVERY STRESSFUL SITUATION AS A DOG WOULD.
IF YOU CAN'T EAT IT OR PLAY WITH IT,
JUST PEE ON IT AND WALK AWAY.
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Old 11-18-2009, 01:29 PM   #6
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The drain hose in on the passenger side of the firewall. It is crimped about a foot below where it connects to the nipple on the firewall. There have been a few threads in here about flooding, etc, and this and the cowl ruibber are the two biggest culprits. The drain hose comes off the nipple on the firewall with a simple ring clamp, so all you need are some pliers to open the clamp, and the hose twists right off. It's crimped closed at the bottom, and this clogs up with crap after a time. Once that happens, water entering the fresh air intake doesn't drain. Just open the crimpoed end and blast out the crap with air or water, return the drain to it's place.

As far as turning the corners to get the water out, in mine, once it got into the interior vents, it would drain out onto my feet when turning right, and onto the passenger footwell when turning left. I'm pretty sure it just came out the vent opening, but as I was driving, it's hard to see down there. I would also hear the water sloshing around in there.
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Old 11-18-2009, 02:16 PM   #7
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cool, thanks guys, I think I`ll check that first, sure am glad I posted this, I would have never "thunk" to check that hose, but first things first, I have to swap out the starter on the truck so I don`t have to climb out of bed at 12:30 at night again to rescue the wife,,*lol*
So I guess its back to driving the cherokee until I get all this sorted out,,
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Old 11-18-2009, 02:51 PM   #8
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i guess that's better than driving a puyallup or a quilliute.
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TREAT EVERY STRESSFUL SITUATION AS A DOG WOULD.
IF YOU CAN'T EAT IT OR PLAY WITH IT,
JUST PEE ON IT AND WALK AWAY.
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Old 11-18-2009, 08:30 PM   #9
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yup, you got that right Chief, may have to drive for a bit though, couldn`t find that darn hose or tube you guys told me to check. I`ll look some more tomorrow, got dark on me today.
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Old 11-18-2009, 08:39 PM   #10
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in this pic, look directly behind the dip stick. it's the one coming straight out and going down.
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TREAT EVERY STRESSFUL SITUATION AS A DOG WOULD.
IF YOU CAN'T EAT IT OR PLAY WITH IT,
JUST PEE ON IT AND WALK AWAY.
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Old 11-19-2009, 08:46 AM   #11
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Ignore the circles and arrows on the 8x10 color, glossy photo. As Chief noted, it's the one behind and just to the left of the dipstick, below the corrugated conduit. Gray, thick, soft rubber, comes off the nipple and does a 90 degree turn downwards. After about a foot, it is flattened and just ends. Remove the spring clip and twist it off the nipple. You'll be able to squeeze the lower end (Where it's flattened, to open it up. I've just squirted it out with a hose, but Chief's idea about boiling water is a good one I plan to adopt. This should do a better job of cleaning and kill the bacteria that cause that stinky, musty smell.
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Old 11-19-2009, 08:51 AM   #12
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i would say its the heater core and even if it is their not hard to replace. quickest way to tell is turn the defrost on and see if the windshield fogs up. that's what mine did and i dint have the strong antifreeze smell because i had a pin hole leak.
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Old 11-19-2009, 12:02 PM   #13
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it won't hurt to put a little bleach in the water or maybe some 30 second moss killer for those of us in the great pacific northwest. (will not effect webs on feet) LOL
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TREAT EVERY STRESSFUL SITUATION AS A DOG WOULD.
IF YOU CAN'T EAT IT OR PLAY WITH IT,
JUST PEE ON IT AND WALK AWAY.
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Old 11-20-2009, 11:19 AM   #14
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So it is the thick one, thats what I thought. I did see it this a.m. dripping a few drops of water out of it. My is crimpes just slightly at the bottom but has a indentation around the bottom like there was a clamp or something on it at one time but someone took it off. It seems pretty clear though, but I`m still going to take it off and blow it out.
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Old 11-20-2009, 11:28 AM   #15
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If there is water already in your vents, you'll still need to wait for it to spill or evaporate away. Removing and cleaning the drain hose will prevent/limit the amount that comes in next time it rains. Or, as Morphius suggests, a small pin hole in your core could be the culprit, but I'd try all the cheaper solutions first.
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Old 11-20-2009, 11:55 AM   #16
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Dang straight my friend,, cheaper solutions first,,,
I don`t know if I can wait till it rains here though. *lol*

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