justinwhite1

Hello all. I'm rather new to the corvette world and looking for some advice. I have a 2017 Z51 auto with 13K miles. In the video attached, you can see the spike in RPM from 4-5 which creates a large jerk. Normally shifts at 2500, when the issues occurs, RPM jumps 2500-3000 before shifting. Any advice on this issue? Please tell me this isn't normal. Thanks in advance

subieworx

Does it do this every time it shifts from 4 to 5?

justinwhite1

vetten76

Mine did the same thing. I went with the Ranger plug in to stop the 8 to 4 cylinder thing. That stoped my trans from doing just what yours did. Plus, the car drives so much better.

justinwhite1

Was yours having this system even in touring/sport/track mode?

I’ve seen a few posts about “shift flares”. Mine doesn’t have the shudder yet, so not sure it could be the TC. Currently at the shop for the 3rd time trying to fix the issue. Not the way I pictured this vehicle going.

vetten76

Mine did it just once as I was driving up a long incline at about 65mph on the freeway. I think I was in tour. I’ve not tried track yet. I drove a couple thousand miles when it was new and had it in Eco mode most of the time. Never did anything wrong. Again, I like the Ranger plug in fix. Car drives great without all the shifting. On the caravan in August, I may go back to stock just to see how it does. 34.5 mpg is what the car gets when the 4 cylinder thing kicks in.