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The "Warble Noise"

 
Old 12-08-2016, 01:24 AM
  #21  
Maxie2U
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Still hope this problem/issue in a form of a question comes up for a vote in an upcoming "Ask Tadge"
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Old 12-11-2016, 12:22 AM
  #22  
Ed Ramberger
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Tell Tadge not to lose any sleep over my warble - I lemon lawed it.
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Old 03-13-2018, 01:39 PM
  #23  
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Originally Posted by Muzzy View Post
This warble noise is a frustrating issue that many of our members are dealing with. Their respective dealers have tried changing entire exhaust systems, transmissions, differentials, half shafts, fluids, etc., all to no avail. Engineers from Detroit have come out to place sensors in one of these vehicles--"a harmonic imbalance." That vehicle is now being sent to Detroit for analysis and hopefully, a "FIX" for all with this problem.

In addition, a video of this issue has been sent to Mary Barra, CM CEO. The members having this exact same noise at "1,500 RPM" on a
"Grade with Steady Acceleration" seem to be all C7 A8 Base Models (non Z51).

Any input from you would go a long way. A forum member made a copy of this problem, currently on You Tube. Here is the link:
https://www.youtube.com/watch?v=Ra_svpk-t9E.

Thank you for your valued attention.

Rich Stadler
when did you send her the video, im in contact with he about my car
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Old 03-14-2018, 10:59 AM
  #24  
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how many of you folks had to get your 2016 stingrays repaired with the wabbeling noise.
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Old 03-14-2018, 04:25 PM
  #25  
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Originally Posted by terry50 View Post
how many of you folks had to get your 2016 stingrays repaired with the wabbeling noise.
My car was bought back before they knew what it was if that counts.
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Old 04-11-2018, 08:44 AM
  #26  
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Default 2016 convertible 3lt

Originally Posted by Ed Ramberger View Post
Mine was just repurchased. No more warble at 1500 rpm, no more growl at 1000 rpm, no more dealing with poor customer service.
I bought mine brand new off the dealer showroom after a couple of weeks I heard the warble sound as well....drives me nuts.... I love the car.... hate the noise.... I would like it fixed or buy mine back ....how can I start a discussion with... GM..... I don't want to waste time going to the dealer. 12000 MILES OR 1900KMS I Canadain
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Old 04-11-2018, 10:54 AM
  #27  
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Originally Posted by ferb View Post
I bought mine brand new off the dealer showroom after a couple of weeks I heard the warble sound as well....drives me nuts.... I love the car.... hate the noise.... I would like it fixed or buy mine back ....how can I start a discussion with... GM..... I don't want to waste time going to the dealer. 12000 MILES OR 1900KMS I Canadain
i have a 2016 brand new. been fighting with gm for two months. they heard the wabble noise. but one dealer said it isnt that bad, i am as we speak waiting for a rep from gm to cme down where is bought the car, and hear the same noise three other people heard. their is a marry barr i call, she is a gm spokesman, useless also. this week i am going to call the bbb, and let them handle it.............good luck
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Old 04-11-2018, 12:45 PM
  #28  
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My car was bought back in 2017. There is a process you must go through and if you meet the criteria for lemon law or BBB you should get results. You must have given GM 3 times to repair and if they can't, you have a case. I did this and GM sent Eng. out twice and couldn't figure it out so they bought my car back. This was in the early days before they actually knew what it was, they now know it is the diff. so they should be able to replace the diff. and your car should be fine. May be harder to get a buy back for the Warble now since they know what the problem is, key is pushing the dealer to do it. Good luck to all.
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Old 05-01-2018, 11:50 AM
  #29  
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Has this issue persisted with the 2018 and 2019 c7s? I haven't experienced this warble sound first hand yet but listening to the video, it kind of sounds like that interference wind tunnel effect you get in some cars when you're driving fast enough with the windows open at the right height. Is it possible that something similar is happening in the c7 around all the engine components with all that air flow under the hood?
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Old 05-02-2018, 08:58 AM
  #30  
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I think i read in the original warble post that a guy had the problem on an 18. The warble is not a wind type noise problem. Bad gear set up in differential.
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Old 05-11-2018, 09:16 AM
  #31  
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Default Warble noise.

Originally Posted by Muzzy View Post
This warble noise is a frustrating issue that many of our members are dealing with. Their respective dealers have tried changing entire exhaust systems, transmissions, differentials, half shafts, fluids, etc., all to no avail. Engineers from Detroit have come out to place sensors in one of these vehicles--"a harmonic imbalance." That vehicle is now being sent to Detroit for analysis and hopefully, a "FIX" for all with this problem.

In addition, a video of this issue has been sent to Mary Barra, CM CEO. The members having this exact same noise at "1,500 RPM" on a
"Grade with Steady Acceleration" seem to be all C7 A8 Base Models (non Z51).

Any input from you would go a long way. A forum member made a copy of this problem, currently on You Tube. Here is the link:
https://www.youtube.com/watch?v=Ra_svpk-t9E.

Thank you for your valued attention.

Rich Stadler
i had the same issue, itís the differential. They need to replace. FIXED!!!!!!! No more warble noise. Miami Lakes Auto Mall took care of it. If your still under warranty I encourage you to fix it. I love my vet now the noise is gone.
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Old 06-01-2018, 12:26 PM
  #32  
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Default Muzzy, Great identification of the "Warble Noise"

I forgot to add I have the same identical noise 2017 Base LT1 , A8
Originally Posted by Muzzy View Post
This warble noise is a frustrating issue that many of our members are dealing with. Their respective dealers have tried changing entire exhaust systems, transmissions, differentials, half shafts, fluids, etc., all to no avail. Engineers from Detroit have come out to place sensors in one of these vehicles--"a harmonic imbalance." That vehicle is now being sent to Detroit for analysis and hopefully, a "FIX" for all with this problem.

In addition, a video of this issue has been sent to Mary Barra, CM CEO. The members having this exact same noise at "1,500 RPM" on a
"Grade with Steady Acceleration" seem to be all C7 A8 Base Models (non Z51).

Any input from you would go a long way. A forum member made a copy of this problem, currently on You Tube. Here is the link:
https://www.youtube.com/watch?v=Ra_svpk-t9E.

Thank you for your valued attention.

Rich Stadler
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Old 08-18-2018, 10:32 PM
  #33  
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delete

Last edited by Ed Ramberger; 08-18-2018 at 11:43 PM.
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Old 08-22-2018, 12:59 PM
  #34  
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Default The "WARBLE FAMILY"

No more "WARBLE"! It took a couple of trips to 2 dealers but I have found a trusted Dealership. The had the car for 2 weeks and installed a new differential. This wouldn't have happened if the forum didn't have all the information. Thank You all ! I drove 800 miles NO "WarbleSound" ! This forum is the best. Thank You Again, Mike
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Old 08-22-2018, 09:14 PM
  #35  
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Default 2019 c7

Dealer has repleased diffential-did not fix. Sent number 4 and 7 side cover-still did not work. Next axle-did not fix. Tried new axle-still a problem. Now they want to take it apart for the fifth time. Also on acceleration car vibrates.

Automactic trans could need three step flush or torque converter.

HELP!!!!
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Old 08-28-2018, 10:28 PM
  #36  
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I have a 2019 stingray that makes the same wobble sound as the videos I've been listing to. It's done this from day one, I thought it was normal but after reading everyone's comments I will contact my dealer and see what they have to say.
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Old 08-31-2018, 06:49 PM
  #37  
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Originally Posted by jvp View Post
I'm really sorry you folks are having issues with your cars.



Then it seems like a good idea to wait for that troubleshooting to end before trying to contact:



..the CEO of GM. Or the VLE of the Corvette.
Apparently this has gone on since 2016 according to this thread. I now have a 4 week old 2019 and it still has the problem?????
How long must we wait?
Problem is that I have owned 9 Corvettes and never had a problem like this.
This time I was really looking at a Porsche Carrera also but the last minute decided to get the Corvette. Should have gone that route.
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Old 08-31-2018, 07:21 PM
  #38  
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Originally Posted by blade072 View Post
Apparently this has gone on since 2016 according to this thread. I now have a 4 week old 2019 and it still has the problem?????
How long must we wait?
Problem is that I have owned 9 Corvettes and never had a problem like this.
This time I was really looking at a Porsche Carrera also but the last minute decided to get the Corvette. Should have gone that route.
Don't wait take it in and start the process, the more times this problem is reported the sooner GM Will admit the problem and generate the TSB. Good luck to all.
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Old 09-21-2018, 03:53 PM
  #39  
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Can someone please explain why a company as big as GM would continue to build what is supposed to be one of their halo cars with differentials that they have to know are responsible for this issue? If they can cure the noise with a new differential why are they not putting a good one in every car that leaves the factory? Is the QC of the supplier that poor that bad diffs continue to be produced and even worse accepted by GM? This is as pathetic a story as the torque converter issue with the transmissions. Sad, very sad.

Last edited by rmorin1249; 09-21-2018 at 03:53 PM.
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Old 11-02-2018, 05:10 PM
  #40  
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I'll be heading back to Kerbeck shortly for the second attempt. I really wish we would hear something from Tadge or anyone at GM.
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