LOST JEEPS
http://www.lostjeeps.com/forum/phpBB3/

Heater core replacement
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=5&t=91036		 Page 1 of 1
Author:  Oldranger [ Mon Mar 02, 2020 11:32 pm ]
Post subject:  Heater core replacement
I think my heater core has a small leak and going to have to replace it. I’ve did a lot of reading and haven’t really found much information on how to remove it. I was just wondering if anyone had any tips or advice about the job? Thanks in advance
Author:  WWDiesel [ Mon Mar 02, 2020 11:42 pm ]
Post subject:  Re: Heater core replacement
Oldranger wrote:
I think my heater core has a small leak and going to have to replace it. I’ve did a lot of reading and haven’t really found much information on how to remove it. I was just wondering if anyone had any tips or advice about the job? Thanks in advance

Have you checked YouTube? Sometimes you can find some pretty good how to videos on there.
Author:  Oldranger [ Mon Mar 02, 2020 11:53 pm ]
Post subject:  Re: Heater core replacement
yea I found a few videos on youtube but they wasnt very helpful.
Author:  TKB4 [ Tue Mar 03, 2020 5:42 pm ]
Post subject:  Re: Heater core replacement
I haven't replaced a heater core on the liberty but I know the first thing I would do is a coolant syaytem pressure test which should show a leak even if you cannot see evidence of the leak. Assuming there is a leak I would disconnect the heater core hoses and plug them or connect them together /bypass them and recheck the coolant pressure test. If there is no longer a leak you have confirmed the core as the source of leak but if the leak continues look elsewhere like head gasket etc.
Author:  Oldranger [ Tue Mar 03, 2020 7:20 pm ]
Post subject:  Re: Heater core replacement
I’ve already pressured tested it and I have a very small leak. I have been all over the engine and checked every hose at least three times. I’m about 99% sure it’s the heater core because of the smell I get from the vents sometimes.
Author:  TKB4 [ Fri Mar 06, 2020 10:52 pm ]
Post subject:  Re: Heater core replacement
I would still take the heater core out of line and pressure test again not that much trouble and can definitely confirm its the source. . If the head gasket or a cracked head is the source of the leak there have been several times the leak has been directly into the exhaust manifold and not visible from inspection (just ask Flash). There can also be internal leaks in EGR if its not totally removed.

Most likely you are correct from the odor but it would be pretty aggravating to do all that work then find out that wasn't it.
Author:  WWDiesel [ Fri Mar 06, 2020 11:30 pm ]
Post subject:  Re: Heater core replacement
Normally with a heater core leak if it is leaking, when you first start the engine in the morning and turn on the defroster, it will fog the windshield very badly due to all the moisture coming out of the heater core from the leaking antifreeze . Plus it will give you that tell-tale strong acidic smell.
Author:  Oldranger [ Sat Mar 07, 2020 12:43 am ]
Post subject:  Re: Heater core replacement
I finally got the heater core out and it was leaking.
Author:  TKB4 [ Sat Mar 07, 2020 2:13 pm ]
Post subject:  Re: Heater core replacement
Great!! Glad it was the core as you strongly suspected ! When you get time if any tips others might need you might post them since there wasn't much good info here about that (pics helpful too ) !!
Author:  TKB4 [ Sat Mar 07, 2020 2:14 pm ]
Post subject:  Re: Heater core replacement
Great!! Glad it was the core as you strongly suspected ! When you get time if any tips others might need you might post them since there wasn't much good info here about that (pics helpful too ) !!
Author:  Oldranger [ Sun Mar 08, 2020 1:30 pm ]
Post subject:  Re: Heater core replacement
I can’t figure out how to upload a picture. It wasn’t to bad of a job, probably took me about 5-6 hours.
Page 1 of 1 All times are UTC - 5 hours [ DST ]
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
http://www.phpbb.com/