2003 CTS - water noise in HVAC stack
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Cadillac CTS First Generation Forum - 2003 - 2007 Discussion, 2003 CTS - water noise in HVAC stack in Cadillac CTS Coupe, Sport Sedan and Sport Wagon Forums; Hey guys I'm hearing the same noise and just recently I'm having some cooling issues... After running, coolant would spill ...
  1. #1
    713CTS is offline Cadillac Owners Member
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    2003 CTS - water noise in HVAC stack

    Hey guys I'm hearing the same noise and just recently I'm having some cooling issues... After running, coolant would spill from the reservoir even after filling! So tomorrow I'm going to check to see if the fans are working (when I turn the ac on) going to attempt to check the fuse also. Any advice would be greatly appreciated. It's a 03 cts 3.2

    Moderator EDIT: This post moved from Seville to CTS - water rushing sound in HVAC stack upon acceleration.

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  3. #2
    MoistCabbage's Avatar
    MoistCabbage is online now Cadillac Owners 10000+ Posts
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    You'd be better off in the correct CTS forum. While the basics of cooling system operation are the same, the Northstar is a WHOLE different animal than your 3.2.

  4. #3
    jcornv15's Avatar
    jcornv15 is offline Cadillac Owners Member
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    Still need help with this?

  5. #4
    Bluehaze07's Avatar
    Bluehaze07 is offline Cadillac Owners Connoisseur
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    Quote Originally Posted by jcornv15
    Still need help with this?
    Yes lol

  6. #5
    jcornv15's Avatar
    jcornv15 is offline Cadillac Owners Member
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    Please describe your issue a bit more broadly

  7. #6
    MoistCabbage's Avatar
    MoistCabbage is online now Cadillac Owners 10000+ Posts
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    He did, in another thread he hijacked.

    713CTS, you have a leak, there's air in the system. The noise is air going through the heater core.

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