03 CTS Tranny Cooler Issue
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Cadillac CTS First Generation Forum - 2003 - 2007 Discussion, 03 CTS Tranny Cooler Issue in Cadillac CTS Coupe, Sport Sedan and Sport Wagon Forums; Hello Everyone, I have read multiple posts and have came to the conclusion that I am not the only person ...
  1. #1
    cupper is offline Cadillac Owners Member
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    03 CTS Tranny Cooler Issue

    Hello Everyone,
    I have read multiple posts and have came to the conclusion that I am not the only person that has had the middle tranny cooler line burst off my radiator.
    I have searched and searched and cannot seem to find an answer to a seemingly very simple question. What is the part number for the tranny cooler lines? I have found replacement radiators, and I just want to replace it all at once to ensure that its all done. Can anyone help me? Do they make universal lines that will work? I have the service manual and see its just a metal block that holds the lines to the tranny, so I assume its a oem part of some sort?

    Thank you for the help!!
    -Cupper

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  3. #2
    ghettomike's Avatar
    ghettomike is offline Cadillac Owners Master
    Automobile(s): 03 CTS 3.2L (Sold) / 09 CBR 600rr /2014 GMC Sierra
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    Re: 03 CTS Tranny Cooler Issue

    I never got a part number, but I got it from the dealer and they installed the lines, apparently they attach on the top of the tranny, I never checked I jusy had them do the lines, I did the rad and had it towed in for the rest.

  4. #3
    dup's Cadi's Avatar
    dup's Cadi is offline Cadillac Owners Fanatic
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    Re: 03 CTS Tranny Cooler Issue

    Get an external cooler.

  5. #4
    cupper is offline Cadillac Owners Member
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    Thread Starter

    Re: 03 CTS Tranny Cooler Issue

    Thanks for the replies, I figured it would be a dealer part, but was hoping for the part number to look it up. As for the external cooler idea, The radiator with the cooler in it is less than $200.00. I can't believe I can even find an external cooler for that price, much less trying to find a place to install it and such....

    Anybody else have any ideas on this, I would really appreciate it!!!

  6. #5
    cupper is offline Cadillac Owners Member
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    Thread Starter

    Re: 03 CTS Tranny Cooler Issue

    Also, Given this problem, can anyone explain to me, how in certain cases radiator fluid gets sucked into the system? I am looking at the possibility of putting an external cooler on it, but would I have to replace the radiator anyway?

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