Want to replace the heater core
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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, Want to replace the heater core in Past Cadillac Vehicle Discussion; Hi, My car is 1994 Deville 4.9 L I had a coolant leakage inside my car, i bypass the heater ...
  1. #1
    dannyga is offline Cadillac Owners Member
    Join Date
    Jun 2003
    Location
    Israel
    Posts
    17

    Want to replace the heater core

    Hi,

    My car is 1994 Deville 4.9 L

    I had a coolant leakage inside my car, i bypass the heater by connecting the in & out hoses together and it stopped.

    First Qtn:
    I want to replace the heater core, i found 2 parts, one with AC and one without AC, which of them i need to buy ?

    A) FOUR SEASONS 94480 Heater Core - w/o AC 45.04
    B) FOUR SEASONS 94480 Heater Core - w/ AC 45.04
    (they have the same Item No.)

    Second Qtn:
    I found the parts at http://www.cadillac-autoparts.com
    do you know better or cheaper site to order from ?

    Third Qtn:
    Also I want to know what other parts i need to order.
    The black plastic cover is broken (i saw the word "BARRIER" on it)
    i want to know how to identify it at the order.

    Fourth Qtn:
    can you give me tips for remove & install the heater core?
    From where to start the whole procedure.

    Thanks, Danny

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  3. #2
    Katshot's Avatar
    Katshot is offline Cadillac Owners Master
    Join Date
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    Newtown, PA
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    Danny,
    You're lucky, it's not a big job on your car. Some cars require the removal of the whole dash and that's NOT fun.
    You ask about which heater core (with, or without A/C) but the part numbers you show are the same? As far as I know, there's no such thing as a Cadillac WITHOUT A/C, so you should be fine. At the very least, common sense would dictate that you DO have A/C, so get that one. As for the pricing issue, I couldn't tell you since I get all my stuff wholesale or below. I'm not sure about retail pricing. The "barrier" should be easily identifiable at the dealer on their computer screen. As for the R&R, it's pretty easy as I recall. just pull the glove box, remove the programmer (paying attention to the air mix door adjustment), pull the lower sound insulator, pull the heater core cover and remove the heater core. Put everything back the way you took it apart and you're done.

  4. #3
    Elvis's Avatar
    Elvis is offline Cadillac Owners Master
    Automobile(s): '05 Expedition
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    That sounds easier than any car I've ever heard.

    Dad's heater core went out on his '77 DeVille at about 83,000 miles. So he traded. My wife's core went out at 89,000 miles, and it cost over $700 to get it fixed at the Volvo dealer.

    This forum is lucky to have members who have been there and done that. Is there a Helms manual for Danny's car? I'd highly recommend getting one if there is.

    Good luck, Dannyga.

  5. #4
    Katshot's Avatar
    Katshot is offline Cadillac Owners Master
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    Jan 2003
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    Newtown, PA
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    6,472
    Like I said in the first sentance to Danny, some cars ARE a real P.I.T.A. , but some are real easy. Hell, I did the one in my Fleetwood in 20min. start to finish.

  6. #5
    dannyga is offline Cadillac Owners Member
    Join Date
    Jun 2003
    Location
    Israel
    Posts
    17
    Hi guys

    Thank you for the detailed answers, i'm going to make the order
    now.

    This forum is really a gift and the professional members are magnificent.

    Bye

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