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  #13  
Old 09-16-2010, 09:01 PM
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Re: Heater core keeps going bad

Give me a Call or text me tomorrow when you get the Jeep. You got my number. If not I can PM you it.
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  #14  
Old 09-16-2010, 11:36 PM
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Re: Heater core keeps going bad

^^K I will
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  #15  
Old 06-28-2011, 08:50 PM
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Re: Heater core keeps going bad

Hey, did you ever get to the bottom of this ?

I have 05 and just replaced it last week and it failed again today. going in with it tomorrow. Leak is a lot faster now. I had cleaned the carpet 3 days ago but havent re-insulated. Tech on phone said maybe a crack in the housing ??? my statement was woudlnt that have surfaced in a pressure test ? tech didnt think they woudl do one. Any thoughts
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Old 06-28-2011, 09:04 PM
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Re: Heater core keeps going bad

If It isn't the heater core, it could be one of the pipes that keeps cracking. Another member on here told me that!!!!
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  #17  
Old 06-29-2011, 12:41 AM
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Re: Heater core keeps going bad

Yes, in the shop I work at I am the only one whom I know of who has done a heatercore in a wk in the 2.5 years Ive been there. I am sure others have but it is a really uncommon thing (unlike the wj). IIRC the heatercore has long tubes off of it that run from the passanger side of the firewall to the middle of the dash where the heater core is located... it is not uncommon to get a box that has been kicked around and have these all bent out of shape.

Ultimately, it could be anything, but the pressure to pop a proven heatercore would be REALLY excessive, not really a pressure differential due to a plugged line (you would likely have a no heat or heat for moments at a time before it continues to pop a tough heater core. My grand was driven on with a severely blown head gasket until the night the PO shut it off and if filled cyl8 up with enough coolant to hydrolock it in the morning. So cy8 was pumping pressure into the cooling system every other revolution of the crankshaft. Not to mention I have 177k on the clock and counting. All of that to say it could absolutely be incompatence, crappy parts, or misdiagnosis'ies, and being a guy that has seen map sensors built for a car not function on the car (a mopar map sensor) multiple transmissions replaced before we got a good reman.... and I have seen crappy techs break stuff. It could be many things, but not knowing the situation, the tech or the dealer I would not be comefortable pointing my finger at just one problem.

Good luck above all, its a crappy situation, and hopefully it gets sorted out for you!
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Old 06-29-2011, 02:28 AM
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Re: Heater core keeps going bad

I think I also have this problem. I replaced my heater core a couple of months ago, I did it myself, so I know there isn't a kink (atleast not that I could see?) I have weathertech floor mats so i never really see the carpet, but I noticed right after I changed the heater core that the carpet was still pretty wet with coolant, I shampooed it and vacuumed the hell out of it, left the weathertech in the cargo area for a few days, it looked ok after so I put the mat back in. Every once in a while I would feel the carpet on the passenger side of the center console to see if it was wet or still leaking. It's not wet there, But yesterday I lifted the floor mat and my carpet is soaked in coolant. It's only right in the bottom of the footwell not on the sides at all, I have no idea where it's coming from. I keep checking my coolant tank and it's slowly dropping. hopefully we can get this figured out.
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Old 02-26-2012, 07:56 PM
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Re: Heater core keeps going bad

Solution?
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  #20  
Old 02-26-2012, 08:06 PM
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Re: Heater core keeps going bad

It could either be the Heater core or the Pipe coming from it that keeps cracking.
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