heater core replacement
Has anybody ever replaced the heater core on thier xj? Mine is leaking and I tried to tackle it today, and I think I am going to have to dissasemble the whole dash to get it out. Do I have to suck out the freon or is there enough room to get the core out? I guess if all fails get a manual( laughing). yeah right.
Renix Super Guru
Joined: Mar 2008
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From: In yourz postez fissin jurr spelinzs
Year: 1990XJ/1989MJ
Model: Comanche
Engine: 4.0L Renix
There is no freon in a heater core. The FSM says you will need to disassemble the whole dash. I have no experience in changing a heater core but the FSM makes it look like a very involved job. You should get a FSM for your year Jeep and read it before trying to do this on your own. Good luck.
I know there is no freon in the heater core, I ment is there enough room to get the heater core out without removing the evaperator. I read another blog and it said that it takes about 5 hours to replace and the console and most of the dash has to be removed along with sucking out the freon. So I think I will wait untill it starts to get cold again to tackle it, thanks for the info though.
X2 on the F.S.M!! A heater core job is one of those that you can wind up with a bucket of parts left over if you don't know what you're doing. At least the F.S.M. will give you proper instruction! It sounds like a pretty sh!tty job, though!! GOOD LUCK, post up how it goes!!
Yes the freon has to be recovered and the dash has to be removed and steering column. Airbags? Unhook the battery for 5-10 minutes before going after bags. It's bad to blow one when your not sitting in the seat, could break an arm or neck!
CF Veteran
Joined: Apr 2008
Posts: 2,237
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From: Northern Illinois
Year: 90
Model: Cherokee
Engine: 4.0
The entire lower half of the dash has to be removed... Its not a fun job. Just make sure to take off the heater hoses before trying to pull the heater core out...
Edit... I got to thinking so I pulled the FSM out... Yep you have to discharge the A/C system... The lines for the evaporator go through one part of the housing you have to remove...
Edit... I got to thinking so I pulled the FSM out... Yep you have to discharge the A/C system... The lines for the evaporator go through one part of the housing you have to remove...
Last edited by whowey; Apr 27, 2008 at 08:47 AM.
thanks for everybodies help/ I think I am going to wait untill I have more time to dedicate to such a job. This is still my daily driver and to put it out of comission ans something not go back together right, might have me walking to work. I did by pass the hoses so it won't leak. Thanks.
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