Hi!
Thanks for the fast answer
You have to excuse my bad english.
I'm going to test to change oil & filter and put some Wynns AutomaticTransmission Treatment in it and se how it runns I'm
also going to put in a seperate oil cooler.
I just read in the autorepair forum that it also could be the TCC solenoid
(Torque Converter Clutch Solenoid).
But first I'm going to test changing the oil & mount the seperate oil cooler
this weekend.