I have something going on with my 4R70W transmission.
Now just so you know the transmission was just rebuilt and I had the issue before the rebuild and I still have the same issue???


Sometimes when I go around a corner after I slow down the transmission slips and then it comes right back to normal. It has only happened twice now since the rebuild but I just do not get it????

 

Two things come to mind. First, if the trans fluid is low it will do this. Second, if the TRS (Transmission Range Sensor) is bad it will also do this. Did you replace the TRS when you rebuilt it? It's the sensor on the driver's side of the trans, where the shift cable attaches.

 

No I did not replace the TRS. I think that's worth looking into for sure. It just is such a strange issue.
Everything else runs smooth with the exception of the speedometer reading lower then actual speed

 

Replaced the TRS and it still does it?
It has to be something simple maybe readjustment to the shifter?

 

Have you talked to the rebuilder?