you must remove the dashboard, instrument cluster, passenger airbag, etc. remove the heater and ac evaporator cover, http://www.f150online.com/forums/showthread.php?t=215665 this will help
well first I'll make the point that the question is for the REAR heater core and not the front on which the person failed to see. To fix the issue, I have not had any issues with mine(98 Expedition). Either buy the owner's manual/repair guide and that should help.
How do you replace a heater core in a 1998 ford expedition?"
How do you replace a heater core in a 1998 Ford Expedition?"
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Cost about 1000 - 1200$. This is one of the hardest heater cores to replace.
its under the passenger side of the dashboard
Take the ford to a mechanic !!
just splice the two heater hoses that go through to the heater core the together
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If the heater is not working in your Eddie Bauer edition Ford Expedition, your heater core is probably junk and needs to be replaced.
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