GM found a fix for the supercharger rattle! - Page 8
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2009-2014 Cadillac CTS-V General Discussion Discussion, GM found a fix for the supercharger rattle! in Cadillac CTS-V Series Forum - 2009-2014; Hell, I know I would have done the isolator a long time ago if GM wouldn't void the warranty! Now ...
  1. #106
    Trapspeed's Avatar
    Trapspeed is offline Cadillac Owners Connoisseur
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    Re: GM found a fix for the supercharger rattle!

    Hell, I know I would have done the isolator a long time ago if GM wouldn't void the warranty! Now there's the real part that doesn't make sense.

  2. #107
    352
    352 is offline Cadillac Owners Member
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    Re: GM found a fix for the supercharger rattle!

    Quote Originally Posted by M5eater View Post
    I've spoken with people that have driven everything from a 458 to a S2000. The CTS-V is about as perfect of a car as you're going to get. The E60 M5, RS6, XF-R, IS-F, B8 S4 and the lot have real problems. The CTS-V makes a funny noise. I'm sorry, but I simply can not understand the justification based on a noise. Would you prefer dropping $5k into an SMG randomly in an E60? Or having a completly locked ECU in the IS-F? What about carbon build-up in the RS4 that causes it to loose up to 100HP if you don't have a $200 service done every couple of thousand miles? Audi calls that normal by the way.

    Those are problems and reasons to avoid a car(and they cost much more than 70K), a noise that a $60 isolator can fix is not.
    I am pretty good with doing general automotive maintenance. Can anybody post step by step instructions with pictures to retrofit the solid isolator since GM is not willing to do it for us? I am a little hesitant to rip apart a beautiful, new, expensive car without a good idea of what I should be doing.

  3. #108
    theamcguy's Avatar
    theamcguy is offline Cadillac Owners Member
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    Re: GM found a fix for the supercharger rattle!

    Quote Originally Posted by M5eater View Post
    Exactly. The problem is, they purposefully designed it to reduce the annoyance of gear noise. Instead they introduced a much greater annoyance, and they're unwilling to fix it.
    Exactly, the spring was put in to reduce gear whine, which it does. The tradeoff is the rattle, go to a solid isolator and you get gear whine, then there will be complaints about that. Pick your poison. If you want a quiet car then maybe a high performance car is not what you really want.
    4DR_ZR1 and 4DR_ZR1 like this.

  4. #109
    GMX322V S/C's Avatar
    GMX322V S/C is offline Cadillac Owners Connoisseur
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    The isolator was put in place to reduce drive gear backlash noise at lower RPM due to the pulsing of an OTTO-cycle engine. I'll ask again: has anyone heard any backlash noise since putting in a solid isolator? I haven't. You'd think those with lopey cams would really hear it.

    The whine comes from the supercharger blades compressing the air and is suppressed through other means, such as intake tract tuning, airbox design, etc.

  5. #110
    calherc1 is offline Cadillac Owners Member
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    Re: GM found a fix for the supercharger rattle!

    Quote Originally Posted by Cadillac Cust Svc View Post
    rnpjstewart, readyact, and RapibRob, consider yourselves added! Your feedback is much appreciated.

    Katie
    Cadillac Customer Service
    Mine has 15000mi and has been rattling since 10000mi. So I can be added as well.

  6. #111
    352
    352 is offline Cadillac Owners Member
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    Re: GM found a fix for the supercharger rattle!

    [QUOTE=theamcguy;2902627]Exactly, the spring was put in to reduce gear whine, which it does. The tradeoff is the rattle, go to a solid isolator and you get gear whine, then there will be complaints about that. Pick your poison. If you want a quiet car then maybe a high performance car is not what you really want.[/QUOTE
    I have a 2008 Cadillac STS V, 2011 Mustang GT500, and a 2011 Corvette ZR1; none make any annoying supercharger rattle or gear whine.

  7. #112
    rbanshee1 is offline Cadillac Owners Member
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    Quote Originally Posted by Cadillac Cust Svc
    jft69z, I did indeed, and I can confirm that you're on that list! I'm now up-to-date with the list through this very message. If anyone else has experienced this issue and wants to be added, please reply to this thread and let me know, and then I will post a confirmation when I have added your username to our list.

    SoCal_V, never fear; that is not a dumb question in the slightest! The list should accurately reflect how many owners are having the rattle with this particular model. Sarah and I hope the list will help call attention to the issue and a resolution will be imminent; seeing that a large percentage of owners have this issue helps build a case for the resolution. I can completely understand the frustration after multiple years of dealing with this rattle. While you are correct in assuming there is no current fix, Sarah began this list (and rightly so!) to make sure we do all we can to pass along the information that the issue is still a prominent concern currently for many owners.

    Katie
    Cadillac Customer Service
    Katie,please be sure to add me to the list, thank you

  8. #113
    bbang is offline Cadillac Owners Fanatic
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    Re: GM found a fix for the supercharger rattle!

    Katie, please add me to the list as well. thank you

  9. #114
    Cadillac Cust Svc's Avatar
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    Re: GM found a fix for the supercharger rattle!

    calherc1, rbanshee1 & bbang, I have just updated the list with your usernames.

    Many thanks,

    Katie
    Cadillac Customer Service

  10. #115
    RippyPartsDept's Avatar
    RippyPartsDept is offline Hi, I'm Chris - Please Read My Signature
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    Re: GM found a fix for the supercharger rattle!

    check with your local dealer but...

    adding the solid isolator should not 'void your warranty'

    it will only void the warranty on any repairs that are needed due to the introduction of the aftermarket part

    any other repairs are still covered

    thank the Magnuson-Moss Warranty Act
    Chris Heath (RippyPartsDept) is an ASE Certified GM Parts Consultant at Rippy Automotive
    Rippy is a Cadillac, Hummer, Saturn & Saab dealership - family owned and operated in Wilmington, NC since 1946
    We offer all forum members discounts on parts and freight - e: parts@rippyautomotive.com ph: 800-RIPPY-22
    <-- insert standard boilerplate about posts not necessarily representing my employer, etc -->

  11. #116
    smackdownCTSV's Avatar
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    Re: GM found a fix for the supercharger rattle!

    Shouldn't. But the GM engineers already said the supercharger isn't serviceable, so it can't be opened. That's why it would void the warranty. Otherwise, they would just issue a TSB to swap the isolators and fix the problem. If only, yeah right.

  12. #117
    Tyns is offline Cadillac Owners Member
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    Re: GM found a fix for the supercharger rattle!

    Wouldn't this mod invalidate the warranty on the supercharger only, then?

  13. #118
    RippyPartsDept's Avatar
    RippyPartsDept is offline Hi, I'm Chris - Please Read My Signature
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    Re: GM found a fix for the supercharger rattle!

    Exactly (unless your modification caused something else to break/fail)
    Chris Heath (RippyPartsDept) is an ASE Certified GM Parts Consultant at Rippy Automotive
    Rippy is a Cadillac, Hummer, Saturn & Saab dealership - family owned and operated in Wilmington, NC since 1946
    We offer all forum members discounts on parts and freight - e: parts@rippyautomotive.com ph: 800-RIPPY-22
    <-- insert standard boilerplate about posts not necessarily representing my employer, etc -->

  14. #119
    xmaciek82x is offline Cadillac Owners Member
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    Re: GM found a fix for the supercharger rattle!

    Katie, add me too. 2009 CTS-V 25k miles

  15. #120
    Cadillac Cust Svc's Avatar
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    Re: GM found a fix for the supercharger rattle!

    Thanks, xmaciek82x! You are now on the list.

    Best,

    Katie
    Cadillac Customer Service

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