A8 Shudder
Thread Starter
Intermediate
Joined: Jul 2018
Posts: 33
Likes: 6
A8 Shudder
I know that this subject has been talked about many times, but I need some more insight in the A8 Shudder issue. I have a 2019 Stingray with 7K miles and are experiencing the A8 Shudder issue, I think. When I accelerate, I get the "rumble strip" like feeling for a short period of time. I monitor the "V8 to V4" transistion on the display and it does not do it when changing from "V8" to "V4" mode. Does the Shudder issue only happen when transistioning from 8 to 4 cylinders, or does it happen any time? I am trying to figure out whether this is the "A8 Shudder" or just road variations affecting the tires, causing the rumble strip feeling.
Race Director
Joined: Oct 1999
Posts: 17,710
Likes: 1,219
From: Phila PA, Bonita Springs FL
If it was the road, you'd feel it if you were accelerating or not. (rumble strips in the center line for example)
Go back to where you felt it and let off the gas to check.
2019's have the updated trans fluid, so if this persists, it may be something with the converter or torque tube etc...
Go back to where you felt it and let off the gas to check.
2019's have the updated trans fluid, so if this persists, it may be something with the converter or torque tube etc...
Pro
Joined: May 2021
Posts: 500
Likes: 433
From: Queen Creek, AZ
In fact, only Corvettes produced after 2/1/19 have the updated fluid from the factory. If your Vette was produced prior to 2/2/19, you are eligible for the triple flush under warranty. If you qualify, I would have it done immediately. The attached copy of the TSB will tell you everything you need to know. Also, consider getting rid of the AFM (V4/V8) mode. over time it's a drive train killer in the Corvette.
Last edited by AZRenegade; Oct 25, 2021 at 11:49 AM.
Advanced
Joined: Jan 2008
Posts: 98
Likes: 6
From: Lakewood Ranch FL
Quick question. I have a 2015 Stringray that had the torque converted replaced in 2016 because of this issue. Now it's doing the same thing. Is GM doing the flush and fluid replacement at no charge in these circumstances? Anybody have this condition after replacement? As far as I know they did not upgrade the fluid when the tc was replaced.
Thanks
Thanks
