Hi there!

Wonder if anybody can confirm what I've recently observed:
During WOT in 3rd gear, at around 90mph the engine rpm hangs and goes down by 300rpm then goes back up to 6,700rpm then shifts into 4th around 95mph.

I've observed this several times and shifting in S mode doesn't change anything.

It seems like the transmission torque converter is not locked until 6,500rpm, then locks which brings the RPM down a bit, then continues to accelerate until it shifts into 4th.

All this happens with no letup on acceleration, so I don't think it's the engine or throttle mapping: it seems to be a torque converter issue.

Anyone observe this too? Thanks.

 

Can you please post a video?