A8 Shudder - do you have it? - Page 26

SSport16 · 04-09-2019, 09:03 AM

Quote:

Originally Posted by Mgsouthwest2001

UPDATE: I took the Camaro in to the dealer this morning. I went ahead and unplugged my range for the drive to the shop. That made a big difference. My dealer is about 25 minutes from my house. The shudder became worse and more noticeable on the way to the shop when the car was in 4 cyl mode and I was giving it light throttle. They confirmed that I do have the TC shudder and are doing the flush with the new fluid on the car. It won't be done until tomorrow morning as they are backed up. The service tech I spoke too said this new fluid is a guaranteed fix. Yeah, we will see I guess. To be honest, I have never been much of a believer in miracle in a bottle fixes. For what its worth, my car is a late build 18. Built in 6-18. This really stinks that the problem has been going on for so long and has affected so many GM vehicles.

Good to hear they detected the shudder and are flushing/filling. Make sure that they do a TCM reprogram/relearn, that helps a great deal as well. Yeah as far the "guaranteed fix", I would take that with a grain of salt, but I am too hopefully, but only time and mileage will tell. Make sure you use the Range when you get it back, that is what made sure to do right away, I am hoping that the lack of AFM will help keep the shudder away.

Mgsouthwest2001 · 04-09-2019, 02:21 PM

Got the car back today. They did the flush with the new fluid. I checked my copy of the paperwork and the TSB and part number for the fluid were correct for the latest fix. Just to test, I drove the car for 10 miles without my range plugged in. I didn't feel any shudder in either 4 or 8 cyl mode. I plugged my range back in and drove some more and for now it looks like the shudder is gone. Fingers crossed.

SSport16 · 04-10-2019, 09:43 AM

Quote:

Originally Posted by Mgsouthwest2001

Got the car back today. They did the flush with the new fluid. I checked my copy of the paperwork and the TSB and part number for the fluid were correct for the latest fix. Just to test, I drove the car for 10 miles without my range plugged in. I didn't feel any shudder in either 4 or 8 cyl mode. I plugged my range back in and drove some more and for now it looks like the shudder is gone. Fingers crossed.

Good deal! Yeah I haven't uncrossed my fingers since I picked mine up a few weeks ago.

speedup · 04-10-2019, 02:25 PM

New flush procedure seem to be the "fix" ?

Mgsouthwest2001 · 04-10-2019, 07:01 PM

Quote:

Originally Posted by speedup

New flush procedure seem to be the "fix" ?

I think it is too early to tell. The new fluid has not been out very long. Gonna take more people getting the new flush and then time and miles to tell for sure. To be honest, I have my doubts but I certainly hope it is the "fix."

classicrockr · 04-10-2019, 08:15 PM

My 2LT has a slight "rumble" feeling when the RPM is at about 1250-1400 and I keep my foot on the gas. If I go above or below that RPM, then it stops.

when it was new, I'd have the hard shifts immediately after starting it when it was cold out.

I don't know if this vibration I'm feeling is the real "A8 shudder" problem or not.

TheWiseWolf · 04-11-2019, 10:38 AM

Does anyone know if this "new" flush will cost us? or will it be covered under the warranty since its a Chevy issue.

Silverado57 · 04-11-2019, 10:41 AM

Quote:

Originally Posted by TheWiseWolf

Does anyone know if this "new" flush will cost us? or will it be covered under the warranty since its a Chevy issue.

Mine was done under warranty.

arpad_m · 04-11-2019, 11:25 AM

Quote:

Originally Posted by TheWiseWolf

Does anyone know if this "new" flush will cost us? or will it be covered under the warranty since its a Chevy issue.

Of course it's a warranty issue. The reason the service dept will want to reproduce and have valid picoscope results is in order to account it as warranty work.

SSport16 · 04-12-2019, 09:50 AM

Quote:

Originally Posted by TheWiseWolf

Does anyone know if this "new" flush will cost us? or will it be covered under the warranty since its a Chevy issue.

If you are still under powertrain warranty, then yes...or if you had transmission issues brought in to the dealer and documented befor the expiration of the powertrain warranty.

Giri · 04-12-2019, 10:58 AM

Has anyone else noticed a significant decrease in power / difference in shift points since the "temporary fix" with the flush and repogram? I don't have any shudder any more but I know my car isn't driving the way it used to before I took it in.

SSport16 · 04-13-2019, 10:16 AM

Quote:

Originally Posted by Giri

Has anyone else noticed a significant decrease in power / difference in shift points since the "temporary fix" with the flush and repogram? I don't have any shudder any more but I know my car isn't driving the way it used to before I took it in.

No, but I do notice that the rear breaks loose easier, probably because before the TC was all screwed up locking/unlocking not correctly.

fsarre · 04-13-2019, 03:14 PM

Yes, I do have it. 5500 miles

Brudda*Termite · 04-13-2019, 03:54 PM

I dropped my car off Thursday at the dealership, 8000 miles. When I described the shudder, the guy told me to leave the car, it needs new fluid. He told me that high heat/humidity environments cause the fluid to absorb water and eat torque converters. Glad it's under warranty.

New guy by the way, I like the forums, reminds me of my old Modular Fords days. Recent convertee to Camaros...

04-09-2019, 02:21 PM	#352
Mgsouthwest2001 Drives: 18 Camaro 2SS 8A Hyper Blue Join Date: Oct 2018 Location: North Carolina Posts: 52	Got the car back today. They did the flush with the new fluid. I checked my copy of the paperwork and the TSB and part number for the fluid were correct for the latest fix. Just to test, I drove the car for 10 miles without my range plugged in. I didn't feel any shudder in either 4 or 8 cyl mode. I plugged my range back in and drove some more and for now it looks like the shudder is gone. Fingers crossed. __________________ 18 Camaro 2SS: Hyper Blue 8A

04-10-2019, 02:25 PM	#354
speedup Drives: 2017 2SS Convertible Join Date: Apr 2017 Location: McKinney, TX Posts: 177	New flush procedure seem to be the "fix" ? __________________ 2017 2SS, Hyper Blue, 8sp, NPP, MRC

04-12-2019, 10:58 AM	#361
Giri Soon to be Millionaire Drives: Blue 2016 Camaro Join Date: May 2016 Location: Gainesville, FL Posts: 379	Has anyone else noticed a significant decrease in power / difference in shift points since the "temporary fix" with the flush and repogram? I don't have any shudder any more but I know my car isn't driving the way it used to before I took it in. __________________ I run a Drone Service Company in Gainesville, FL - Please visit my site and take a look

04-13-2019, 03:54 PM	#364
Brudda*Termite Drives: 2017 Camaro 2SS Join Date: Mar 2019 Location: Lakeland, Florida Posts: 416	I dropped my car off Thursday at the dealership, 8000 miles. When I described the shudder, the guy told me to leave the car, it needs new fluid. He told me that high heat/humidity environments cause the fluid to absorb water and eat torque converters. Glad it's under warranty. New guy by the way, I like the forums, reminds me of my old Modular Fords days. Recent convertee to Camaros... __________________ Gary 2017 2SS A8 White, Bolt-Ons, Prayed Upon

04-10-2019, 08:15 PM	#356
classicrockr Pills are for Pansies Drives: 2023 2SS Red Hot Vert Camaro Join Date: Jul 2008 Location: Citrus Springs FL Posts: 1,296	My 2LT has a slight "rumble" feeling when the RPM is at about 1250-1400 and I keep my foot on the gas. If I go above or below that RPM, then it stops. when it was new, I'd have the hard shifts immediately after starting it when it was cold out. I don't know if this vibration I'm feeling is the real "A8 shudder" problem or not.

04-11-2019, 10:38 AM	#357
TheWiseWolf Drives: Camaro Join Date: Jun 2015 Location: Virginia Posts: 138	Does anyone know if this "new" flush will cost us? or will it be covered under the warranty since its a Chevy issue.

04-13-2019, 03:14 PM	#363
fsarre Drives: 2022 Camaro SS Join Date: Mar 2019 Location: Medford,NY Posts: 13	Yes, I do have it. 5500 miles

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