Heater Core Replace BRRR COLD!
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HT4100 4.1, 4.5, 4.9 Discussion, Heater Core Replace BRRR COLD! in Cadillac Engine Technical Discussion; Got my 1983 Eldorado 4 years ago. Had the leaky heater core bypassed in the first week of ownership. Tried ...
  1. #1
    nycnftm is offline Cadillac Owners Fanatic
    Automobile(s): 1983 Eldorado
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    Heater Core Replace BRRR COLD!

    Got my 1983 Eldorado 4 years ago. Had the leaky heater core bypassed in the first week of ownership. Tried replacing it myself, but realized it is a PIA and lived 3 winters cold. What would you guy estimate a decent shop would charge me to finally replace it. Also, does the blower need to be on for it to pass heat? Can it just be warm with intake air?
    Thanks in advance
    A

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  3. #2
    Sevillian273's Avatar
    Sevillian273 is offline Cadillac Owners Connoisseur
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    Re: Heater Core Replace BRRR COLD!

    I have heard of heater core replacements going from 700 - 1200 bucks. Book time is high on a job like that for most cars. Not sure about your specific model though.

  4. #3
    nycnftm is offline Cadillac Owners Fanatic
    Automobile(s): 1983 Eldorado
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    Re: Heater Core Replace BRRR COLD!

    Now I remember why I'm cold in the winter. LOL

  5. #4
    MrDobin is offline Cadillac Owners Fanatic
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    Re: Heater Core Replace BRRR COLD!

    This reminds me of the joyful winter I had while surviving in Minnesota on ONLY the induction current to defrost hahaha.

  6. #5
    daniel58 is offline Cadillac Owners Fanatic
    Automobile(s): 58 Coupe Deville, 77 Coupe deville, 90 Deville
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    Re: Heater Core Replace BRRR COLD!

    You could try one of those small 12vt heaters, its not much but may help to clear the windshield.

  7. #6
    skipcarver42 is offline Cadillac Owners Member
    Automobile(s): 1995 Deville, 86K miles
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    Re: Heater Core Replace BRRR COLD!

    I just had my cooling system flushed, a new thermostat and heater core on my 95 Deville for $258. Heat is a good thing to have in Indiana winters.

  8. #7
    drewsdeville is offline Cadillac Owners Master
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    Re: Heater Core Replace BRRR COLD!

    Yeah, let us know what happens with this one. I know most of the post-'85 FWD Cadillacs have heater cores that are relatively accessible compared to most others. Usually can be done by removing the glove box and kickpanel.

    Same can't be said for most Ford vehicles. Most need the entire dashboard removed to get at them. Crown Vic's and Taurus's are notorious for high cost heater core replacement.

  9. #8
    Sevillian273's Avatar
    Sevillian273 is offline Cadillac Owners Connoisseur
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    Re: Heater Core Replace BRRR COLD!

    ^ I second that. I just took my grand marquis apart in preparation for scrapping it and the ENTIRE dash was disassembled before I even saw where the core was. What a nightmare it would have been if I had to put it all back together!

  10. #9
    still_walkin's Avatar
    still_walkin is offline Cadillac Owners Connoisseur
    Automobile(s): 1993 Cadillac deville sedan
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    Re: Heater Core Replace BRRR COLD!

    Quote Originally Posted by Sevillian273 View Post
    I have heard of heater core replacements going from 700 - 1200 bucks. Book time is high on a job like that for most cars. Not sure about your specific model though.
    mine ran mine 780 93 sdv

  11. #10
    quins90lac's Avatar
    quins90lac is offline Cadillac Owners Enthusiast
    Automobile(s): 1990 Cadillac sedan devile
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    Re: Heater Core Replace BRRR COLD!

    my 90 took me about 4-5 hours to do. hardest part was getting the hoses off and back on.

  12. #11
    donwon is offline Cadillac Owners Enthusiast
    Automobile(s): 92 Deville
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    Re: Heater Core Replace BRRR COLD!

    The hose clamps on my 92 Deville were a PITA so bought a special tool to compress the hose clamps and have had to use it on a few other vehicles also.
    It made things much eaiser.

  13. #12
    nycnftm is offline Cadillac Owners Fanatic
    Automobile(s): 1983 Eldorado
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    Re: Heater Core Replace BRRR COLD!

    Sorry I didn't update sooner. I went to an a/c shop that had nothing to do in the cold. I brought the core that I got at Autozone, new anti-freeze and a bottle of Bars Leak pellets and they did it for $300 cash.

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