Need a Gilley guess (or fact) 722.6

[Jeff Hartmann]

I have posted this before, and have searched for at least a year.

I have a 97 210 722.6 transmission that has had a problem since birth. I have the original owners paperwork where he complains of a banging into gear after coasting, like slowing for a light then accelerating when it changes.

My explanation is that it is only a 2nd to 3rd shift problem. It will slip about 500rpm and then firmly engage. If I drive very cautiously, gentle throttle, it shifts seemingly normal. And of course it will slip and reengage harshly after coasting(only 2nd to 3rd) as the original owner suggested. The bills reflect only test drives with "could not duplicate" , and it is possibly worse when it is up to temperature.

For my troubleshooting, I had local MB put it on the computer, no faults. I did replace a leaking plug adapter (and MB fluid/filter ) at 164,000miles. The plug was full of fluid. No apparent change. MB tech said he had not seen a bad plate or solonoid without a computer fault.

What do you think it could be, was there an ETC recall or .....
I have 177,000 on it now, I bought it knowing the fault. (it had gone 130k before I bought it and hadn't failed) I would just like it to shift normally.