KKH_58

I'm new to the site and need some help, the 4l60e will not hold in 1st, if you start the engine, it seems to grab 1st most of the time, sometimes it's real slugish and then sometimes I have to turn it off and start it again before it will move again. When it's in drive, and just idling after about 30 sec it seems like it just goes into neutral, If I turn it off and back on, I can drive a short distance and as soon as it's about to shift into 2nd, it's back to the same thing, off and back on and we move again. Is this a problem with the electronis or pump?, or anthing else you can think of, BTW there's no codes at this time, unless the lites burnt out. Please help I need to know if this is something I can swap out (soliniod, etc) or is this R&R tranny swap.