47re question
 

Hey all
every so often if i let my truck idle when going into a convenience store and after its warmed up
i get back in and head out and its like there is a hard spot in the throttle linkage if i just hold it at that point it will stay in first
at 1500 rpm and not shift until i push through it then it shifts fine after that it does not slip and all the shift points are correct lock up at 40 mph OD at 50

any insight ?