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Cadillac ATS Technical Discussion Forum Discussion, Moldy AC - opinions please in Cadillac ATS Discussion Forums; Originally Posted by GJB So what has changed AC in cars have benn around for 5O years. This is the ...
  1. #106
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    Re: Moldy AC - opinions please

    Quote Originally Posted by GJB View Post
    So what has changed AC in cars have benn around for 5O years. This is the first car out of 15 thathas had this issue?
    But the execution (actual part design) is going to be different between cars. I thought at least some of these problems are due to a drain hose being installed wrong causing water to stand instead of drain. I wouldn't be surprised if all of this was caused by that. The fact is manufacturers are perfectly happy to use a mask-the-problem fix if its cheaper than the proper fix. I'm not saying its the case, but if its dirt cheap to reprogram some after-blow than replace or move a hose that's buried and if that gets rid of x% of the complaints, they would do that.
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    probee773 is offline Cadillac Owners Member
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    Re: Moldy AC - opinions please

    So, my dealer says that they cannot turn on afterblow in my car because my car doesn't have this option (base 2.0T, auto + CUE). Isn't this just a software update? Do I need to find another dealer?

  3. #108
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    Re: Moldy AC - opinions please

    Look at poat#98 and ask your dealer about the Scan tool and bring that info with you.

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    DEVGRU is offline Cadillac Owners Member
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    Re: Moldy AC - opinions please

    Just another update: It has been some time since I did the repair I posted. I still have fresh air in my car and the car is still draining condensation from the bottom of the car like it should. If anyone else has done the ac repair following the steps I provided, please feel free to post it. I'd like to know if you had success like I did. Thanks!

    DEVGRU

  5. #110
    GTO to ATS is offline Cadillac Owners Member
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    Re: Moldy AC - opinions please

    Did anyone take theirs in to the dealer and after they deorderize it have the car faintly smells like the musty smell at all times, not just the first 10 seconds the AC is on? Its no where near as strong as what it smelt like in those first 10 seconds (it doesnt get worse upon first turning on the AC) but its still noticeable...even when the car is off.

  6. #111
    probee773 is offline Cadillac Owners Member
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    Re: Moldy AC - opinions please

    Quote Originally Posted by probee773 View Post
    So, my dealer says that they cannot turn on afterblow in my car because my car doesn't have this option (base 2.0T, auto + CUE). Isn't this just a software update? Do I need to find another dealer?
    Ok, so my ATS falls in this weird gap where the after-blow feature wasn't installed from the factory. See the article on the bottom left of page 6 of this link: http://sandyblogs.com/techlink/wp-co...ink-2013-F.pdf. My dealer followed these instructions, and now, I have after-blow! Let's hope this helps the issue (even a little) especially since I live in Florida, and it's starting to get hot and humid down here. ;-)

  7. #112
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    Re: Moldy AC - opinions please

    Took my ATS back to dealer for the musty odor because after blow did not correct the problem. Ticket states they repositioned drain tube and coated evaperator coil with cooling coil coating per PI1160A. Sure hope this fixes it.

    Does anyone know what cooling coil coating is?
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  8. #113
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    Re: Moldy AC - opinions please

    Quote Originally Posted by GJB View Post
    Does anyone know what cooling coil coating is?
    It is an acrylic based coating that is supposed to prevent airborne and moisture based bacteria, mold & mildew from building up on or sticking to the cooling coil preventing odor.

  9. #114
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    Re: Moldy AC - opinions please

    Quote Originally Posted by CTSCHICK View Post
    It is an acrylic based coating that is supposed to prevent airborne and moisture based bacteria, mold & mildew from building up on or sticking to the cooling coil preventing odor.
    Which makes a lot of sense. I wonder why its not applied prior or during the build.

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    rsingl is offline Cadillac Owners Fanatic
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    Re: Moldy AC - opinions please

    I wonder how much the coating interferes with heat transfer to the coil? Maybe the effect is offset by reduced debris buildup on the coil/fins.

  11. #116
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    Re: Moldy AC - opinions please

    According to a manufacturer no interference. Check out this link very informative and It looks like they may make the AC DELCO version of this. http://www.airsept.com/index.php?loadmod=cccfaq

  12. #117
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    Re: Moldy AC - opinions please

    Ticket states they repositioned drain tube and coated evaperator coil with cooling coil coating per PI1160A.

    Does the service receipt note how long the repair took? I’m curious whether they removed your dash or dropped the trans or some other invasive tactic. Mine is going in soon for a recall and this is on my list. Bert

  13. #118
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    Re: Moldy AC - opinions please

    I'll look and let you know. I doubt they removed the dash it was only there 1.5 days and I had an alignment and recall inspection during the visit. I believe they went through the glove compartment to spray the coating (glove box and passenger seat had some minor grease/dirt marks from the tech). And in this post someone did the cleaning/coating themselves and they said you could at least see the drain from where that shifter cable runs so maybe they could reach it? Fly states they dropped the trans on his. Car was taken for a 10 Mile test drive after so they very well may have.


    Update: Asked SA and she said "He had to go under the dash and pull the side panel off to gain access to the evaporator"

    This seems to apply to adding the coating but doess not jive with anything else I've read on the drain tupe issue, so not too confident

    Update day 2 and still OK!
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    Re: Moldy AC - opinions please

    Quote Originally Posted by GJB View Post
    According to a manufacturer no interference. Check out this link very informative and It looks like they may make the AC DELCO version of this. http://www.airsept.com/index.php?loadmod=cccfaq
    That is the OEM, GM relabels and use's quite a few of their products.
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  15. #120
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    Re: Moldy AC - opinions please

    Quote Originally Posted by Bertha D Blues View Post
    Ticket states they repositioned drain tube and coated evaperator coil with cooling coil coating per PI1160A.

    Does the service receipt note how long the repair took? I’m curious whether they removed your dash or dropped the trans or some other invasive tactic. Mine is going in soon for a recall and this is on my list. Bert
    Bert From my ticket it looks like time is listed as units and 1.10 was next to the AC fix and .90 for the recall work.
    Bertha D Blues likes this.

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