C7 Shutter
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Yes, it is still a thing. If your A8 shows the symptoms, you should get the flush done.
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Joined: Sep 2019
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Melting Slicks
Joined: Jul 2015
Posts: 2,255
Likes: 781
From: Nashville TN
At idle? You mean sitting still and the car shakes?
If so, that's normal. It has a "lopey" idle.
If it shudders while driving, that's the transmission. And yes, the TSB calls for a triple flush. Had mine done two weeks ago under warranty. 25 quarts of fluid on the invoice.
If so, that's normal. It has a "lopey" idle.
If it shudders while driving, that's the transmission. And yes, the TSB calls for a triple flush. Had mine done two weeks ago under warranty. 25 quarts of fluid on the invoice.
Drifting
Joined: Jul 2016
Posts: 1,878
Likes: 1,160
From: Keswick, Virginia
My girlfriend has a 2019 Stingray (non-Z51) with the 8spd automatic. The build date was either January or February of 2019.........so I don't know if that was AFTER the problem fluid was used. I bought her a Range AFM device right after she bought the car, so maybe that helps.
My 2017 Stingray has the 7spd manual, so it is not an issue for my car.
This topic is interesting AND scary at the same time.
My 2017 Stingray has the 7spd manual, so it is not an issue for my car.
This topic is interesting AND scary at the same time.
Safety Car
Joined: Mar 2018
Posts: 4,754
Likes: 1,650
My girlfriend has a 2019 Stingray (non-Z51) with the 8spd automatic. The build date was either January or February of 2019.........so I don't know if that was AFTER the problem fluid was used. I bought her a Range AFM device right after she bought the car, so maybe that helps.
My 2017 Stingray has the 7spd manual, so it is not an issue for my car.
This topic is interesting AND scary at the same time.
My 2017 Stingray has the 7spd manual, so it is not an issue for my car.
This topic is interesting AND scary at the same time.
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Safety Car
Joined: Mar 2018
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https://gm-techlink.com/?p=11127
also see:
https://www.corvetteforum.com/forums...5-may-2019.pdf
Last edited by MMD; May 24, 2020 at 09:41 PM.
Melting Slicks
Joined: Dec 2011
Posts: 2,509
Likes: 946
From: Western New York
I had the Triple Flush done today 5/27/2020 on my 17 GS. I didn’t have symptoms of shudder but just wanted this done as a precaution. I called dealer ahead of making appointment and explained I wanted done under BTB Warranty’as a precaution and sent copy of update ( Aug 2019 ) 18 NA 355 Service Bulletin shows that it should be done upon customer request. They did the Triple Flush with new fluid GM part # 19417577 - Mobil 1 LV ATF HP Service Writer write on order “ possible shudder customer request Triple Flush. I will still be using my Range Device to help keeping out of V4.
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Last edited by Borntorun04/17; May 27, 2020 at 08:34 PM.
Melting Slicks
Joined: Jun 2017
Posts: 2,568
Likes: 1,183
From: Conyers Georgia
I had 2 triple flushes done last year. Eve after the 2nd the shudder was still there although not as bad. The dealer said no to a 3rd flush so I did a drain and fill of the tranny only, put in an additive and the shudder was greatly reduced but still present. I finally decided to live with it and got so accustomed to it that when it stopped altogether I didn't even realize it. I am now shudder free.
Safety Car
Joined: Mar 2018
Posts: 4,754
Likes: 1,650
I had the Triple Flush done today 5/27/2020 on my 17 GS. I didn’t have symptoms of shutter but just wanted this done as a precaution. I called dealer ahead of making appointment and explained I wanted done under BTB Warranty’as a precaution and sent copy of update ( Aug 2019 ) 18 NA 355 Service Bulletin shows that it should be done upon customer request. They did the Triple Flush with new fluid GM part # 19417577 - Mobil 1 LV ATF HP Service Writer write on order “ possible shutter customer request Triple Flush. I will still be using my Range Device to help keeping out of V4.
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Burning Brakes
Joined: May 2018
Posts: 885
Likes: 270
From: New Castle, IN
C6 of Year Finalist (stock) 2019
I purchased my C7 a little over a month ago, 3400 miles and I've read a few post over the shudder noise with the A8. I've noticed with mine in drive, around 50 mph's I hear what sounds like a chattering noise, but when I pull it down into manual the sound is gone, is that the trans shudder I'm hearing?
Last edited by feastersss; May 27, 2020 at 06:50 PM.
Le Mans Master
Joined: Mar 2016
Posts: 9,156
Likes: 4,001
From: 2019 CMG Z06
I purchased my C7 a little over a month ago, 3400 miles and I've read a few post over the shudder noise with the A8. I've noticed with mine in drive, around 50 mph's I hear what sounds like a chattering noise, but when I pull it down into manual the sound is gone, is that the trans shudder I'm hearing?
Safety Car
Joined: Mar 2018
Posts: 4,754
Likes: 1,650
Pretty much what it says. They drain & fill the auto trans 3 times. They do this as there is no direct means to expel all the fluid from the trans torque converter. By replacing the fluid 3 times, the dirty fluid in the torque convertor is eventually expelled resulting in a 100% exchange of the transmission fluid.