The "Warble Noise"
12-08-2016, 12:24 AM
#21
Le Mans Master
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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Muzzy (12-08-2016)
12-10-2016, 11:22 PM
#22
Drifting
Tell Tadge not to lose any sleep over my warble - I lemon lawed it.
03-13-2018, 12:39 PM
#23
Instructor
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
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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terry50 (03-14-2018)
04-11-2018, 07:44 AM
#26
5th Gear
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2016 convertible 3lt
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
04-11-2018, 09:54 AM
#27
Instructor
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
04-11-2018, 11:45 AM
#28
Safety Car
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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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ArmchairArchitect (09-11-2018)
05-01-2018, 10:50 AM
#29
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?
05-02-2018, 07:58 AM
#30
Safety Car
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Location: Walhalla South Carolina
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Warble
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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ArmchairArchitect (09-11-2018)
05-11-2018, 08:16 AM
#31
Warble noise.
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
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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ArmchairArchitect (09-11-2018)
06-01-2018, 11:26 AM
#32
Instructor
Muzzy, Great identification of the "Warble Noise"
I forgot to add I have the same identical noise 2017 Base LT1 , A8
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
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
08-18-2018, 09:32 PM
#33
Drifting
delete
Last edited by Ed Ramberger; 08-18-2018 at 10:43 PM.
08-22-2018, 11:59 AM
#34
Instructor
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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08-22-2018, 08:14 PM
#35
1st Gear
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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!!!!
Automactic trans could need three step flush or torque converter.
HELP!!!!
08-28-2018, 09:28 PM
#36
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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Mensan150 (11-02-2018)
08-31-2018, 05:49 PM
#37
Instructor
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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Mensan150 (11-02-2018)
08-31-2018, 06:21 PM
#38
Safety Car
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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.
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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Mensan150 (11-02-2018)
09-21-2018, 02:53 PM
#39
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St. Jude Donor '15-'16,'18
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 02:53 PM.
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