Good afternoon.
I'll be happy to take a look at what's going on with the shifting. For clarification, this is only occurring when going wide open throttle, or does it also have issues at heavy throttle just shy of full throttle? I as because the WOT kickdown is handled differently than the standard shifts.
Also, do you have any way to distinctly identify if it's a shift or if it's a converter lock that is causing the issue? They can often feel the same, but are handled very differently. If you have access to a scan tool that can display gear and converter status, that would be super helpful.
Let me know.
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