A8 Shudder - do you have it? - Page 20

blpadge2 · 03-17-2019, 04:57 PM

GM was supposed to announce a fix for the A8 8LE90 in the first quarter of 2019. Well the 1st quarter ends in 2 weeks, and I haven't heard a peep. After reading this thread it appears all that has been done was specify a new part number of Mobil 1 ATF. I had mine done in Oct. 2018 with just under 15K on the car and the dealer used part 19353429 which Google says is the Mobil 1 Black label. I haven't hit 17K yet. No real shudder but the tranny shifts crazy, like if I do a full throttle pass on interstate and lift off the throttle, the car stays rev'ed at 5K and refuses to shift (performance shift mode?).

Has anyone heard anything? Is the new blue label Mobil to be the be all, end all for the car or has GM shutdown all attempts to fix in the wake of the pending class action?

Oh and found this on a Corvette site from 2018 that says the 19353429 is only for EV's and 19355656 is for 8LE45 and 8LE90. https://www.corvetteactioncenter.com...rint-1398.html

RideWithDanger · 03-17-2019, 06:09 PM

All I saw for the 2019 fix was the flush and replacing with Mobil 1. But are the cars fixed from the factory now? I have a car set to be built next month and I'm wondering if this is something I have to worry about still.

SSport16 · 03-18-2019, 10:38 AM

The new "fix" is out already, most dealers have had it for some time now. All it consists of is an aggressive flush, supposedly Bosch has some tool that was given to dealers that helps flush out the old fluid, then is filled with the Mobil 1 synthetic fluid like you mentioned above. I had mine done about 2 weeks ago, along with the dealers reprogramming the TCM again to help out with the hard shifts from P to D or P to R. Like a different car, no shudder, no hard shifts, nothing anymore, drives awesome! Now, I only put 200 miles or so on it since, so we will see if it lasts, but for now it is great!

sf70h · 03-19-2019, 12:19 AM

Quote:

Originally Posted by SSport16

The new "fix" is out already, most dealers have had it for some time now. All it consists of is an aggressive flush, supposedly Bosch has some tool that was given to dealers that helps flush out the old fluid, then is filled with the Mobil 1 synthetic fluid like you mentioned above. I had mine done about 2 weeks ago, along with the dealers reprogramming the TCM again to help out with the hard shifts from P to D or P to R. Like a different car, no shudder, no hard shifts, nothing anymore, drives awesome! Now, I only put 200 miles or so on it since, so we will see if it lasts, but for now it is great!

I'm taking mine in to the dealer soon ... could you share / do you know the latest TSB # that this falls under? I'm just prepping that my dealer is going to make this difficult. Thank you.

I'm also looking to get the differential groan addressed. I'm at 10.5k miles, nearly 2yrs on my 17' 2SS.

There's also a recall on the power steering. This is going to be an interesting visit along with an oil change!

I'm in Northern Virginia ... if anyone has any preferred dealerships please let me know. (I should make this a separate thread, but thank you if anyone has any info.)

Silverado57 · 03-19-2019, 04:42 AM

Mine was done last week and I've put almost 100 miles on it since then. No issues with the dealer or with the shudder.

SSport16 · 03-19-2019, 10:57 AM

Quote:

Originally Posted by sf70h

I'm taking mine in to the dealer soon ... could you share / do you know the latest TSB # that this falls under? I'm just prepping that my dealer is going to make this difficult. Thank you.

I'm also looking to get the differential groan addressed. I'm at 10.5k miles, nearly 2yrs on my 17' 2SS.

There's also a recall on the power steering. This is going to be an interesting visit along with an oil change!

I'm in Northern Virginia ... if anyone has any preferred dealerships please let me know. (I should make this a separate thread, but thank you if anyone has any info.)

I don't have the TSB # in front of me, think it ends with 755, could be wrong though. They should have it and know about it at your dealer.

The groan is going to be a band-aid, nothing more. Mine is fine when the weather turns and stays warm.

MANNAXMAN · 03-19-2019, 03:39 PM

Quote:

Originally Posted by sf70h

I'm taking mine in to the dealer soon ... could you share / do you know the latest TSB # that this falls under?

I believe the latest TSB is # 18-NA-355.

ItsChristianInHD · 03-19-2019, 05:15 PM

Quote:

Originally Posted by MANNAXMAN

I believe the latest TSB is # 18-NA-355.

You’re right. Worked like a charm for me.

jamesliz1 · 03-20-2019, 11:56 PM

Finally gave up on my 2016 SS2 Camaro because it is obvious GM has NO fix for 8 speed auto. They are now facing a major class action lawsuit filed jointly by California, Florida, Illinois, New York, Oklahoma and Texas involving model years 2015-2019 for Chevy trucks, Camaros, Cadillacs, Corvettes and GMC trucks with the 8 speed auto.

The suit alleges GM has offered no permanent fixes to date to correct hard shifting, failure to engage in gear, metal filings in the transmission case and the dreaded shuddering. They have offered only temporary fixes to string customers along until the warranty expires.

GM has even upgraded their ads for their new trucks stating they have a new "enhanced eight speed transmission designed to improve shift quality, as well as a new pendulum absorber torque converter that reduces vibrations to improve smoothness" Whatever the hell that is. The fact that they "enhanced" the most recent 8 speed is a clear admission that something is seriously wrong with the design of the non-enhanced 8 speed automatic.

Interesting quotes in the new ads that puts it on the line that the older 8 speed will not hold up. Also do you really trust that the new "enhanced one" will?

Basically if you are not having the 8 speed auto problem you can count on it that you will. One of their most recent TSBs tells dealer NOT to replace transmission or torque converter because it is not a permanent fix. Suppose to have come out with a solution in January, 2019. No fix, just another fluid flush procedure and change in the type of fluid to use. Fluid flush and change IS NOT a permanent fix! I had them only to have the shuddering return.

So I turned it in for a car with a drive train that puts the Camaro to shame in terms of smoothness and total sophistication - 2019 Dodge Challenger R/T Plus Scat Pack. Does it corner like a Camaro? No. Is it as fast stock? No, 3 tenths slower 0-60. However the ZF 8 speed auto shifts faster and is as smooth as silk, and the entire engine and drivetrain just seem better integrated with the automatic. Also change from 8 cylinder mode to 4 is totally non-perceptible. It obvious from the get go that Dodge put some real engineering and money into the drivetrain of this car.

It is also obvious that the GM 8 speed has an inherent design flaw that cannot be corrected. Are they going to replace all our transmissions with the "new enhanced 8 speed?" And yes, I took a big hit at trade in because other dealers are very aware of the 8 speed auto mess. Hopefully if the class action is successful I will get some compensation because the law suit contains language about compensation for reduce resale value.

Sadly I thought I had purchased the best Camaro ever made, emerging from a muscle car into a true sports car. Never going back! I'll take the reduced handling in curves and the reduced 0-60 for a car that truly gives you confidence that it will last. Other benefit no direct injection, so no carbon build-up problem.

If you haven't had the 8 speed auto problem don't celebrate for it's only a matter of time. Mine started at 7,000 along with rear end groan and lasted until 11500 when I had had enough of GM foolishness. Again nothing handled as well as the Camaro but if you can't even smoothly and reliably drive into those curves there is no point talking about how great it handles.

RideWithDanger · 03-21-2019, 03:12 AM

Is it still coming from the factory tho? My ordered 2019, will I need to be watching this still?

Silverado57 · 03-21-2019, 06:11 AM

Quote:

Originally Posted by jamesliz1

...

If you haven't had the 8 speed auto problem don't celebrate for it's only a matter of time. ...

The new flush and fill seems to be an improvement. Sorry you missed it.

jamesliz1 · 03-21-2019, 06:19 AM

RideWithDanger,

The 2019's are included in the lawsuit. Only GM knows if they are now using, as of today's date, the "enhanced" 8 speed in the Camaros. Could use the new 10 speed in all instead. "Enhanced version" may not even exist but is just simply part of an advertising campaign to get rid of all the old 8 speed inventory, or to just sell their new trucks. If it does exist there is no mileage history on it. For three years (four according to the lawsuit) we were all told fluid flushes, torque converter replacements and even transmission replacements would work, and in GM's recent notification to dealers they were told to no longer do the torque converter and transmission replacements because they didn't result in a permanent solution. Only GM can answer your question and their honesty to date is quite suspect.

jamesliz1 · 03-21-2019, 06:25 AM

Siverado57,

I participated in ALL GM flushes. They work only for a while. Improvement doesn't hack it when you spent $42,000 to buy a vehicle. I want to keep a car at least 100,000 miles. Do you really think an improvement will do that? That's why I gave up!

jamesliz1 · 03-21-2019, 06:50 AM

We can all keep keep denying the 8 speed problem and keep posting our mileages with the"no problems yet" message. I chose to no longer play the Russian Roulette game with GM. I wish you all luck and the best going forward, but you don't know what you are missing until you try a truly refined 8 speed transmission.

03-17-2019, 06:09 PM	#268
RideWithDanger Drives: 23 2SS 1LE Join Date: Feb 2019 Location: GA Posts: 624	All I saw for the 2019 fix was the flush and replacing with Mobil 1. But are the cars fixed from the factory now? I have a car set to be built next month and I'm wondering if this is something I have to worry about still. __________________ Instagram: RideWithDanger Current Mods: Rotofab, Ported LT2 intake, LT5 TB, Kooks Headers, AWE Touring Catback Radiant Red 23' 2SS 1LE 1100: 11/14/22 \| BUILT: 3/16/23 2000: 2/17/23 \| 4200: 5/8/23 3000: 2/27/23 \| 5000/6000: 5/15/23

03-18-2019, 10:38 AM	#269
SSport16 Drives: 2016 Garnet Red Camaro 2SS Join Date: Jul 2015 Location: North Carolina Posts: 5,435	The new "fix" is out already, most dealers have had it for some time now. All it consists of is an aggressive flush, supposedly Bosch has some tool that was given to dealers that helps flush out the old fluid, then is filled with the Mobil 1 synthetic fluid like you mentioned above. I had mine done about 2 weeks ago, along with the dealers reprogramming the TCM again to help out with the hard shifts from P to D or P to R. Like a different car, no shudder, no hard shifts, nothing anymore, drives awesome! Now, I only put 200 miles or so on it since, so we will see if it lasts, but for now it is great! __________________ 2SS Camaro, Garnet Red, Adrenaline Red, NPP, MRC, A8, 5 Split Spoke Bright Silver Wheels (56W) 1100 Status - 7/24/15 (Ordered) 3800 Status - 10/13/15 (Built) 6000 Status - 12/22/15 (Delivered)

03-19-2019, 04:42 AM	#271
Silverado57 Drives: 2017 Camaro SS Join Date: Nov 2018 Location: East Tennessee Posts: 522	Mine was done last week and I've put almost 100 miles on it since then. No issues with the dealer or with the shudder. __________________ Kevin Luceo Non Uro

03-20-2019, 11:56 PM	#275
jamesliz1 Drives: 2016 Camaro SS2 Join Date: Mar 2019 Location: Louisiana Posts: 11	No More 2016 Camaro SS2 Finally gave up on my 2016 SS2 Camaro because it is obvious GM has NO fix for 8 speed auto. They are now facing a major class action lawsuit filed jointly by California, Florida, Illinois, New York, Oklahoma and Texas involving model years 2015-2019 for Chevy trucks, Camaros, Cadillacs, Corvettes and GMC trucks with the 8 speed auto. The suit alleges GM has offered no permanent fixes to date to correct hard shifting, failure to engage in gear, metal filings in the transmission case and the dreaded shuddering. They have offered only temporary fixes to string customers along until the warranty expires. GM has even upgraded their ads for their new trucks stating they have a new "enhanced eight speed transmission designed to improve shift quality, as well as a new pendulum absorber torque converter that reduces vibrations to improve smoothness" Whatever the hell that is. The fact that they "enhanced" the most recent 8 speed is a clear admission that something is seriously wrong with the design of the non-enhanced 8 speed automatic. Interesting quotes in the new ads that puts it on the line that the older 8 speed will not hold up. Also do you really trust that the new "enhanced one" will? Basically if you are not having the 8 speed auto problem you can count on it that you will. One of their most recent TSBs tells dealer NOT to replace transmission or torque converter because it is not a permanent fix. Suppose to have come out with a solution in January, 2019. No fix, just another fluid flush procedure and change in the type of fluid to use. Fluid flush and change IS NOT a permanent fix! I had them only to have the shuddering return. So I turned it in for a car with a drive train that puts the Camaro to shame in terms of smoothness and total sophistication - 2019 Dodge Challenger R/T Plus Scat Pack. Does it corner like a Camaro? No. Is it as fast stock? No, 3 tenths slower 0-60. However the ZF 8 speed auto shifts faster and is as smooth as silk, and the entire engine and drivetrain just seem better integrated with the automatic. Also change from 8 cylinder mode to 4 is totally non-perceptible. It obvious from the get go that Dodge put some real engineering and money into the drivetrain of this car. It is also obvious that the GM 8 speed has an inherent design flaw that cannot be corrected. Are they going to replace all our transmissions with the "new enhanced 8 speed?" And yes, I took a big hit at trade in because other dealers are very aware of the 8 speed auto mess. Hopefully if the class action is successful I will get some compensation because the law suit contains language about compensation for reduce resale value. Sadly I thought I had purchased the best Camaro ever made, emerging from a muscle car into a true sports car. Never going back! I'll take the reduced handling in curves and the reduced 0-60 for a car that truly gives you confidence that it will last. Other benefit no direct injection, so no carbon build-up problem. If you haven't had the 8 speed auto problem don't celebrate for it's only a matter of time. Mine started at 7,000 along with rear end groan and lasted until 11500 when I had had enough of GM foolishness. Again nothing handled as well as the Camaro but if you can't even smoothly and reliably drive into those curves there is no point talking about how great it handles. Last edited by jamesliz1; 03-21-2019 at 06:26 PM.

03-21-2019, 03:12 AM	#276
RideWithDanger Drives: 23 2SS 1LE Join Date: Feb 2019 Location: GA Posts: 624	Is it still coming from the factory tho? My ordered 2019, will I need to be watching this still? __________________ Instagram: RideWithDanger Current Mods: Rotofab, Ported LT2 intake, LT5 TB, Kooks Headers, AWE Touring Catback Radiant Red 23' 2SS 1LE 1100: 11/14/22 \| BUILT: 3/16/23 2000: 2/17/23 \| 4200: 5/8/23 3000: 2/27/23 \| 5000/6000: 5/15/23

03-17-2019, 04:57 PM	#267
blpadge2 Drives: 2016 Camaro Convertible 2SS Join Date: Nov 2016 Location: Gastonia, NC Posts: 106 View My Garage	GM was supposed to announce a fix for the A8 8LE90 in the first quarter of 2019. Well the 1st quarter ends in 2 weeks, and I haven't heard a peep. After reading this thread it appears all that has been done was specify a new part number of Mobil 1 ATF. I had mine done in Oct. 2018 with just under 15K on the car and the dealer used part 19353429 which Google says is the Mobil 1 Black label. I haven't hit 17K yet. No real shudder but the tranny shifts crazy, like if I do a full throttle pass on interstate and lift off the throttle, the car stays rev'ed at 5K and refuses to shift (performance shift mode?). Has anyone heard anything? Is the new blue label Mobil to be the be all, end all for the car or has GM shutdown all attempts to fix in the wake of the pending class action? Oh and found this on a Corvette site from 2018 that says the 19353429 is only for EV's and 19355656 is for 8LE45 and 8LE90. https://www.corvetteactioncenter.com...rint-1398.html

03-21-2019, 06:19 AM	#278
jamesliz1 Drives: 2016 Camaro SS2 Join Date: Mar 2019 Location: Louisiana Posts: 11	RideWithDanger, The 2019's are included in the lawsuit. Only GM knows if they are now using, as of today's date, the "enhanced" 8 speed in the Camaros. Could use the new 10 speed in all instead. "Enhanced version" may not even exist but is just simply part of an advertising campaign to get rid of all the old 8 speed inventory, or to just sell their new trucks. If it does exist there is no mileage history on it. For three years (four according to the lawsuit) we were all told fluid flushes, torque converter replacements and even transmission replacements would work, and in GM's recent notification to dealers they were told to no longer do the torque converter and transmission replacements because they didn't result in a permanent solution. Only GM can answer your question and their honesty to date is quite suspect. Last edited by jamesliz1; 03-21-2019 at 05:57 PM.

03-21-2019, 06:25 AM	#279
jamesliz1 Drives: 2016 Camaro SS2 Join Date: Mar 2019 Location: Louisiana Posts: 11	Siverado57, I participated in ALL GM flushes. They work only for a while. Improvement doesn't hack it when you spent $42,000 to buy a vehicle. I want to keep a car at least 100,000 miles. Do you really think an improvement will do that? That's why I gave up! Last edited by jamesliz1; 03-21-2019 at 11:24 AM.

03-21-2019, 06:50 AM	#280
jamesliz1 Drives: 2016 Camaro SS2 Join Date: Mar 2019 Location: Louisiana Posts: 11	We can all keep keep denying the 8 speed problem and keep posting our mileages with the"no problems yet" message. I chose to no longer play the Russian Roulette game with GM. I wish you all luck and the best going forward, but you don't know what you are missing until you try a truly refined 8 speed transmission.

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