Hey bigcountry Im having some similar issues with my trans.. and sounds like u know what ur talking about. Except when my trans starts acting up it does two things:
1. when going up hill loaded or empty it starts kind of rattling towards the top of normal size hill in the city.
2. while city driving after a good 15min it will start shifting waaaay too soon, to where i be in 3rd gear in a parking lot. once in a while it will shutdown and check eng. light come on ... sometimes engine speed will drop to an idle and stay there, i can floor it and engine will not respond until a few seconds have passed . no codes for tranny .
Ive gotten a few hints from some members and just wondering if u have any ideas ...or if these symptons sound familiar.... Thnx