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This always happens !!!

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Old 08-14-2012 | 04:00 PM
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Arab1970's Avatar
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Default This always happens !!!

Coolant leaking !!! I replaced the thermostat housing and the gasket twice !!! but it still leaks ....
Attached Thumbnails This always happens !!!-jeep.jpg  
Old 08-14-2012 | 04:04 PM
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I always put some gasket maker (Silicone) on both sides when i put a thermo on. I've always had them leak if not
Old 08-14-2012 | 04:08 PM
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Originally Posted by 89cherokeelimited
I always put some gasket maker (Silicone) on both sides when i put a thermo on. I've always had them leak if not
I use Mopar Silicone, but no benifit
Old 08-14-2012 | 04:08 PM
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Felpro gasket. RTV. Gotta scrape that mounting surface clean. Old gasket may be caked on there and it may look like its flat and clean but take a narrow flat head screwdriver on it and more crap will scrape off. Keep cleaning until you get to pretty metal. Make sure your gasket is not slipping out of place before you tighten up.
Old 08-14-2012 | 04:18 PM
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Originally Posted by Muaddib420
Felpro gasket. RTV. Gotta scrape that mounting surface clean. Old gasket may be caked on there and it may look like its flat and clean but take a narrow flat head screwdriver on it and more crap will scrape off. Keep cleaning until you get to pretty metal. Make sure your gasket is not slipping out of place before you tighten up.
thank you, I get this done in the garage because I can't do it myself! Do you think garage people don't do their work well? or this happens because of the high temperature (over 50) ?
Old 08-14-2012 | 04:36 PM
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Your garage guys aren't doing something right.

I have never had mine leak there.

Buy a new outlet, gasket and make sure both surfaces are really clean.

You can do it yourself. All you need is a 13mm wrench...
Old 08-14-2012 | 04:54 PM
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Originally Posted by lowrange2
Your garage guys aren't doing something right.

I have never had mine leak there.

Buy a new outlet, gasket and make sure both surfaces are really clean.

You can do it yourself. All you need is a 13mm wrench...
yes! it looks true. I'll try to solve it, thanks
Old 08-14-2012 | 04:59 PM
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It's about an easy do it yourself as you can get. You don't even need to mess with the belt. Couple of bolts, remove the two hoses and thermometer.
Old 08-14-2012 | 05:25 PM
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One other thing to mention: I've seen the housing crack due to ''making sure is won't leak' and tightning the bolts too much.
Like above, clean surfaces thoroughly, RTV/sealant both sides of gasket, (might as well check if the thermostat is positioned correct while you're there) and tighten the bolts just snug.
Let us know how you go with this.
Old 08-14-2012 | 05:48 PM
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I'm somewhat puzzled by the color of what's leaked out.
Old 08-14-2012 | 09:22 PM
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Originally Posted by djb383
I'm somewhat puzzled by the color of what's leaked out.
That's what I was looking at too!
Old 08-14-2012 | 11:14 PM
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Originally Posted by djb383
I'm somewhat puzzled by the color of what's leaked out.
I think it's the colour of the adhesive they used
Old 08-15-2012 | 08:11 AM
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Hope its not the colour of ur coolant though.
Old 08-15-2012 | 09:19 AM
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Can you see exactly where it's coming from ? Are you sure it's not leaking around the heater/rad hose? I like to tighten them up when their warm. Also theres people out there that think tighter is better and bend the ears on the thermostat housing. When I do a housing for the first time I put a sheet of sandpaper on the table of my table saw (nice and flat) and lightly sand the face of the housing making it true again.
Old 08-15-2012 | 09:19 AM
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Originally Posted by Arab1970
I think it's the colour of the adhesive they used
Looks like it needs a band-aid



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