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Old 12-30-2009, 04:55 PM   #1
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crazy sh#$ heater HELP

1991 YJ V6

Replaced my heater core, and last night i gunned it to get on the highway, and POOF my car filled with coolant steam....

Found it came from the hose on the firewall, the lower hose...
Ran fine all night afterwards, Hose not tight enough? could it be a bigger issue?


NOW checked my oil and it seems like there's like a white foamy type substance and my oil seems a little dark....

I put in some oil sealant a week ago and its filled with lucas stabilizer could it be that? What could it be? What should i do?

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Old 12-30-2009, 05:00 PM   #2
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tighten your hoses and chainge oil and filter and try again! eliminate some possibilities oil color could change due to addatives!

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Old 12-30-2009, 09:30 PM   #3
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have u ever replaced the radiator cap just a thought maybe the system is making to much pressure. other wise i would say do an oil change and make sure ur hoses are tight and see were that gets u.
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Old 12-30-2009, 10:12 PM   #4
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cool,thanks,I'll try that, hope it's nothing more
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Old 12-30-2009, 10:51 PM   #5
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Quote:
Originally Posted by mattband2 View Post
1991 YJ V6

Replaced my heater core, and last night i gunned it to get on the highway, and POOF my car filled with coolant steam....

Found it came from the hose on the firewall, the lower hose...
Ran fine all night afterwards, Hose not tight enough? could it be a bigger issue?


NOW checked my oil and it seems like there's like a white foamy type substance and my oil seems a little dark....

I put in some oil sealant a week ago and its filled with lucas stabilizer could it be that? What could it be? What should i do?
try opening your radatior cap and letting it run to get it through the system so there is no air pockets in the system
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Old 12-30-2009, 11:08 PM   #6
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Change your oil then check again it sounds to me like a blown head gasket. But don't freak yet change your oil drive and then check it again. Even if it is a head gasket don't freak. Its hella easy to do a head gasket on a 4.0.
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Old 12-31-2009, 02:43 AM   #7
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Cool, I'll change the oil tomorrow, and how long before I check the oil again to notice if its a head gasket? Drive it for an hour, and see? thanks!

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