4l60E / T42 TC lockup problems

[harascho]

Hi ,
after some first timer troubles I am into the game. I just returned from some test runs. In the past I noticed a strange TC clutch behaviour. . When applied I still could hear a constant change in rpm. No I have it in the first log. I recorded the TIS, TOS , and the TCCslippage. When the TC is applied there is still a 30 - 60rpm slippage like a sine wave. That's the sound I heard...

I read somewhere that in the 2007 applications the TC isn't locked ful, there is always some slippage... but what I recorded looks a little strange for me.. I think need some help.... ;-)

THX

Harald