A8 “Q1 updated fix” -Delete if not aloud

Azerlazer26 · 02-11-2019, 02:12 PM

To everyone that has the A8 trans with the new fluid that GM sent out. How has the new fluid been holding up? Do you still feel the transmission shuddering?

TJay74 · 02-11-2019, 02:29 PM

Not even sure if anyone has been able to get this update done yet. My dealership hasnt even got the fluid nor the tool GM is sending out to put the fluid in yet.

Azerlazer26 · 02-11-2019, 02:41 PM

Quote:

Originally Posted by TJay74

Not even sure if anyone has been able to get this update done yet. My dealership hasnt even got the fluid nor the tool GM is sending out to put the fluid in yet.

To my understanding GM said every dealership should have the equpiment by March 2019. When exactly I don’t know

NobleSS · 02-11-2019, 02:55 PM

Quote:

Originally Posted by TJay74

Not even sure if anyone has been able to get this update done yet. My dealership hasnt even got the fluid nor the tool GM is sending out to put the fluid in yet.

See thread

https://www.camaro6.com/forums/showthread.php?t=546505

Dudman · 02-13-2019, 09:55 PM

I had my 17 ss done at Reeder Chevrolet in Knoxville a few weeks ago. The new flush has worked great so far. No more shudder but I’ve only put about 400 miles on it. Time will tell because the first flush old style worked for a few thousand miles too. Got my fingers crossed cause I love the car.

Amble · 02-14-2019, 01:17 PM

Got the updated flush done about two weeks ago. It had been around 10,000 miles since the first flush.

So far everything's feels fine but I know it took at least 8000 miles for me to notice it coming back, and a bit longer before it came back reliably. But I know it came back worse than before the first flush.

My chosen dealer was quite backed up with A8s of all models getting the same flush done. It took 4 days, which they gave me a loaner for, and it took less than 20 minutes for the actual job that my dash cam recorded.

Stex · 02-14-2019, 03:04 PM

This is way sad. For you young folks or new to GM or both , GM has a track record. My 90 Sub paint went bad. GM repainted. It went bad again. 2009 GMC CC. Bad PVC set up coated the rings. Uses oil, a lot. Then AFM issues, noisy lifters, collapsed lifters and flatten cams. 2014+ shake, now A8 across the line up...Future? My bet is the DFM.

Budman51 · 02-14-2019, 05:14 PM

I just drove my 2018 1SS A8 home from the dealer/service dept after having TSB 18-na-355 done (65 miles). Shifts are crisper, quicker and more representative of a performance auto tranny. Car has a 11/17 build date, I purchased it 2/11/18, and now has 1541 miles. Noticed the shudder last November, about 1180 miles. After Christmas, shudder got a little more noticeable and asked the dealer service advisor about the shudder when it was in for an oil change, he said bring it in for diagnosis. They verified the shudder, loaned me a 2019 Colorado for a couple days, and now I am a happy camper. Let's hope this lasts.

ItsChristianInHD · 02-14-2019, 05:34 PM

Quote:

Originally Posted by Budman51

I just drove my 2018 1SS A8 home from the dealer/service dept after having TSB 18-na-355 done (65 miles). Shifts are crisper, quicker and more representative of a performance auto tranny. Car has a 11/17 build date, I purchased it 2/11/18, and now has 1541 miles. Noticed the shudder last November, about 1180 miles. After Christmas, shudder got a little more noticeable and asked the dealer service advisor about the shudder when it was in for an oil change, he said bring it in for diagnosis. They verified the shudder, loaned me a 2019 Colorado for a couple days, and now I am a happy camper. Let's hope this lasts.

I noticed the same thing. It definitely shifts better!

02-11-2019, 02:12 PM	#1
Azerlazer26 Drives: 2018 Camaro 2SS Join Date: Jun 2018 Location: Michigan Posts: 611 View My Garage	A8 “Q1 updated fix” -Delete if not aloud To everyone that has the A8 trans with the new fluid that GM sent out. How has the new fluid been holding up? Do you still feel the transmission shuddering?

02-11-2019, 02:29 PM	#2
TJay74 Drives: 17 Camaro SS 1LE & 16 Sierra AT CC Join Date: Nov 2016 Location: Norman, OK Posts: 2,424	Not even sure if anyone has been able to get this update done yet. My dealership hasnt even got the fluid nor the tool GM is sending out to put the fluid in yet. __________________ 2019 Corvette Z06 2LZ A8 - Halltech CAI, AWE non-catted X-pipe, Mamo V2 ported TB 592rwhp, bone stock 566rwhp 2017 Camaro SS 1LE - Procharger D1SC w/ Tial 2" BOV & Race intercooler / ARH full length catless headers / Alky meth injection system - 650rwhp on conservative tune SOLD

02-14-2019, 05:14 PM	#8
Budman51 Drives: 2023 SGM 1SS Join Date: Dec 2017 Location: High Springs, Florida Posts: 39	I just drove my 2018 1SS A8 home from the dealer/service dept after having TSB 18-na-355 done (65 miles). Shifts are crisper, quicker and more representative of a performance auto tranny. Car has a 11/17 build date, I purchased it 2/11/18, and now has 1541 miles. Noticed the shudder last November, about 1180 miles. After Christmas, shudder got a little more noticeable and asked the dealer service advisor about the shudder when it was in for an oil change, he said bring it in for diagnosis. They verified the shudder, loaned me a 2019 Colorado for a couple days, and now I am a happy camper. Let's hope this lasts. __________________ 2023 1SS SGM A10 NPP

02-13-2019, 09:55 PM	#5
Dudman Drives: 2017 Camaro ss convertible Join Date: Aug 2018 Location: Clinton Tn Posts: 7	I had my 17 ss done at Reeder Chevrolet in Knoxville a few weeks ago. The new flush has worked great so far. No more shudder but I’ve only put about 400 miles on it. Time will tell because the first flush old style worked for a few thousand miles too. Got my fingers crossed cause I love the car.

02-14-2019, 01:17 PM	#6
Amble Drives: 2017 Arctic Blue 2SS Join Date: May 2015 Location: TX Posts: 19	Got the updated flush done about two weeks ago. It had been around 10,000 miles since the first flush. So far everything's feels fine but I know it took at least 8000 miles for me to notice it coming back, and a bit longer before it came back reliably. But I know it came back worse than before the first flush. My chosen dealer was quite backed up with A8s of all models getting the same flush done. It took 4 days, which they gave me a loaner for, and it took less than 20 minutes for the actual job that my dash cam recorded.

02-14-2019, 03:04 PM	#7
Stex Drives: 67 goat, 69 goat ram air III Join Date: Mar 2009 Location: South texas Posts: 1,443	This is way sad. For you young folks or new to GM or both , GM has a track record. My 90 Sub paint went bad. GM repainted. It went bad again. 2009 GMC CC. Bad PVC set up coated the rings. Uses oil, a lot. Then AFM issues, noisy lifters, collapsed lifters and flatten cams. 2014+ shake, now A8 across the line up...Future? My bet is the DFM.

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