[15CamaroV6]

There is a bulletin out for the transmission in case anyone hasnt heard.
i had a shudder in my trans at various speeds.
The process is 8 trans flushes. test drive.
then 4 trans flushes. test drive.
then 2 trans flushes. test drive. then i get the car back.

[Cameron27]

.

[whiskeyfed]

My car also goes in on Monday. Can you contact your dealership that did the work and have them email you the bulletin?

Perfect timing. Thank you for posting!

[15CamaroV6]

Bulletin 16-NA-175

[15CamaroV6]

Thanks. I couldn't take the constant shuddering. So I brought it in.

[Cameron27]

.

[whiskeyfed]

Originally Posted by Cameron27

Thanks. I don’t get crazy shuttering, but I do get it enough that I will bring this up at my apptmnt. So hopefully they’ll apply this TSB.

Howver, question to anyone:: It sounds like this tsb might not solve a transmission that shifts poorly. As I understand it, this is meant to correct shuttering, and won’t improve shifts? I want to provide my tech with accurate TSB’s so we can discuss, as it’s easy to go over what feels wrong, but would help to reference what I can. Of course, if an entire transmission or engine needs replacing, you don’t reference a TSB so much as you just say “shits broken, needs a full replacement.”

I am in your boat Cameron. I don't have so much "shuddering" as I do poor, clunky shifts. I will bring this TSB up nonetheless. The last thing I want is to get in my car with an "all clear" and turn on to the road and have it do the same thing. Honestly, at this point, I can't really tell whether it is electronic or mechanical. It's just bad.

[JohnCobalt]

Is this something that happens over time or did you all notice the shuddering right away?

[15CamaroV6]

over time for me. started happening more and more frequently.

[whiskeyfed]

Originally Posted by 15CamaroV6

over time for me. started happening more and more frequently.

^^^ Yep, exactly the same for me too. It started out as a "break-in" issue. Then after that, it started to get progressively worse.

[JohnCobalt]

Thank you

[dekes1]

Can you guys describe a little deeper what you mean by shuddering? Is it at constant speed or only during shifts? Under throttle or under coasting? Any particular gear?

[ChicagoTommy]

Originally Posted by dekes1

Can you guys describe a little deeper what you mean by shuddering? Is it at constant speed or only during shifts? Under throttle or under coasting? Any particular gear?

Weirdly enough, I have this issue with my 6L45 trans... At about 42MPH under light acceleration it feels like hard misfiring. I always just chalked it up as transient throttle spark knock. Too bad the bulletin only covers MY2015+ vehicles.

http://www.corvetteactioncenter.com/...tate-1382.html

[ChicagoTommy]

Originally Posted by 15CamaroV6

There is a bulletin out for the transmission in case anyone hasnt heard.
i had a shudder in my trans at various speeds.
The process is 8 trans flushes. test drive.
then 4 trans flushes. test drive.
then 2 trans flushes. test drive. then i get the car back.

The bulletin I found does not list this procedure. It only calls for 1 flush, fill, then drive a minimum of 200 miles. Do you have a link to your information? It would be extremely wasteful to perform 14 fluid flushes. Figure the trans probably holds around 10 quarts of fluid along with the converter, and a quart of trans fluid runs around $5, so that would be $700+/- worth of wasted transmission fluid if someone performed the service you described.