Leaking Heater Core
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Senior User
Joined: Nov 2003
Posts: 215
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From: Planet Earth
Leaking Heater Core
My heater core has developed a leak. I've never messed with it before, and I'm sure people here have already.
Any tips, ideas, tricks etc... to remove the unit for inspection would be greatly appreciated.
Thanks in advance.
Sam
Any tips, ideas, tricks etc... to remove the unit for inspection would be greatly appreciated.
Thanks in advance.
Sam
Senior User
Joined: Aug 2003
Posts: 314
Likes: 0
From: Tucson, Arizona
Sam,
If you do not have the under dash A/C, it's pretty easy. I drained my cooling system first, removed the heater hoses, and then there are two nuts on the engine side of the firewall, I think it's two. Could be three. Remove the right and left defroser hoses, then I dropped the heater assembly to access the core. You'll have to disconnect the defrost control cable from the heater assembly first. If you have a Chilton's manual, it will walk you through each step. I don't recall having to do anything special. It was the easiest heater core change I have been through. Good luck. Let me know if you need specific directions. I can scan them and send them that way.
Bryan
If you do not have the under dash A/C, it's pretty easy. I drained my cooling system first, removed the heater hoses, and then there are two nuts on the engine side of the firewall, I think it's two. Could be three. Remove the right and left defroser hoses, then I dropped the heater assembly to access the core. You'll have to disconnect the defrost control cable from the heater assembly first. If you have a Chilton's manual, it will walk you through each step. I don't recall having to do anything special. It was the easiest heater core change I have been through. Good luck. Let me know if you need specific directions. I can scan them and send them that way.
Bryan
Lead Driver
Joined: Jan 2003
Posts: 9,893
Likes: 12
From: Ohio
Bryan pretty much covered it. The bolts on firewall, then the 8-10 inside that hold the cover on heater box, the defrost tubes. It all falls apart pretty easy and very accessible. Slip the new heater core in and reverse the procedure.
ONE note. There is a small spring clip on the back side of the heater core that puts pressure on core to keep it from rattling around. I think there is a spot for it to sit. A piece of tape is used to hold it in place until you get core slid into place. Not a big deal, but thought I would mention it.
Larry
ONE note. There is a small spring clip on the back side of the heater core that puts pressure on core to keep it from rattling around. I think there is a spot for it to sit. A piece of tape is used to hold it in place until you get core slid into place. Not a big deal, but thought I would mention it.
Larry
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