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I am talking to a man a few hours away from me about a 1971 Coupe De'Ville he has listed on Craigslist. He says the car has a bad heater core. I've checked the repair manual that I have and it states that the 70-76 Seville, DeVille, and Brougham heater core replacement requires the removal of the dash. The seller tells me that he has had it to a mechanic and that he tells him it is a "simple fix" that can be done from the engine compartment without pulling the dash. I have searched the forum and found some discussion on the subject on other years but no real clear yes or no answer as to whether or not it can be done with out removing the dash. Any addition information would be appreciated.

Thanks,
James
 

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1970 Eldorado.
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4,023 Posts
Good to know to take a look into this. I just got myself a new heater core and did not expect to remove the dash.
 

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1970 Deville Convertible
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309 Posts
I can't say for a '71, but for my '70, the heater core is serviced from the engine compartment. I do recall that there was some under dash work necessary though.
 

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1976 Eldorado Convertible
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41 Posts
You have to do both from under the dash & you have to open and disconnect the A/c/heater "case" from the engine firewall side & disconnect the hoses from that side.Its a wonderfully miserable job and be prepared to contort your body into a variety of configurations.
 
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