8 speed auto. trans.
09-16-2020, 10:04 AM
#1
Drifting
Thread Starter
8 speed auto. trans.
Yesterday I took my 2016 corvette to my dealer because of either the transmission of torque converter has a problem. Two of my club members had their torque converter or transmission changed.I have 18,400 miles and I started feeling shudders and jerking. I was told to take it in. My 3 year warranty is over but wanted to know if there was a recall due to a defective trans.
I was told that they would flush the fluid and reprogram the trans. does this sound like a fix??? $1,500,00.
I was told that they would flush the fluid and reprogram the trans. does this sound like a fix??? $1,500,00.
09-16-2020, 10:27 AM
#2
Go on Goggle , Look up GM TSB 18-NA 355 . Mobil One has a new fluid to fix this .LV ATF HP Blue lable .GM will pay for this . 1,500.00 is you getting ripped off . Good Luck , Power train warranty is 4 years . Get a Range device .
Last edited by dfkruger; 09-16-2020 at 10:42 AM.
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09-16-2020, 10:41 AM
#4
Race Director
Yesterday I took my 2016 corvette to my dealer because of either the transmission of torque converter has a problem. Two of my club members had their torque converter or transmission changed.I have 18,400 miles and I started feeling shudders and jerking. I was told to take it in. My 3 year warranty is over but wanted to know if there was a recall due to a defective trans.
I was told that they would flush the fluid and reprogram the trans. does this sound like a fix??? $1,500,00.
I was told that they would flush the fluid and reprogram the trans. does this sound like a fix??? $1,500,00.
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Rebel Yell (09-17-2020)
09-16-2020, 11:08 AM
#5
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$1500 - sounds like they are trying to screw you. Get a second opinion and mention the power train warranty coverage.
09-16-2020, 01:23 PM
#7
Melting Slicks
TSB: 18-NA-355 addresses the shudder and explains the triple flush. TSB: 16-NA-014 addresses the torque converter flood back. If you are not experiencing a delayed and harsh engagement when putting the car in drive after sitting overnight, focus on the flush.
09-16-2020, 02:50 PM
#8
Although mine was still under warranty, I thought GM had a bulletin and covered the cost of yours to do the flush & fluid change.
I’d question them harder, or check w a different dealer.
Isn’t your drivetrain warranty still valid?
I’d question them harder, or check w a different dealer.
Isn’t your drivetrain warranty still valid?
09-16-2020, 08:54 PM
#9
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Just another helpful GM dealer... NOT! 
Get your facts/data together and go elsewhere. You should be fine.
Get your facts/data together and go elsewhere. You should be fine.
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yellow2007 (09-17-2020)
09-16-2020, 10:01 PM
#10
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I just use the paddles 100% of the time. Good luck with your fix!
09-17-2020, 04:44 PM
#11
I don't get the "use paddles all the time" your still using your tranny and t. converter not bypassing then????
09-17-2020, 07:21 PM
#12
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The flush, and refill with new fluid helped my previous '16 a lot. And yes, at $1500 dollars they should at least kiss you first.
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Kevin A Jones (09-17-2020)