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You can't get there from here. The dash has got to come out, or at least partially, enough to work in behind it. I usually don't remove a dash entirely. I usually take it loose enough to "swing" it out of my way, lay it over on the passenger's side seat. I squeeze in behind the dash to access the heater core. As far as the A/C is concerned, I can't remember that far back to rememeber which side of the firewall that evap core is. If it is outside the firewall, under the hood, then you shouldn't have to touch the A/C anyway, but if it is inside the passenger's compartment, in the same box as the heater core, you have to discharge it.

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โˆ™ 2011-09-13 06:23:03
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Q: How do you remove the heater core in a 1988 Ford Thunderbird without taking the dash out or having to recharge the ac system?
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