I received two more tips after my last post, the first was to try turning up the heat and the second was to turn down the extruder current.
I am not sure about the temperature as I WAS printing fine around 180°C before and I had tried turning it up some (to around 190°C). But I thought why not try.
The current on the extruder however I had been messing with just before I started having problems a while back. I did not think that having the current to high would cause problems with extruding, but just might make my stepper run too hot.
So I turned up the heat to 210°C and turned the current back down to as low as I could and still have the stepper turn.
And it prints!!! (here are a few pictures of one of my favorite test parts, the "y_bar_clamp_10off")
Maybe not quite as well as before my problems, but I have also messed with all my speeds and feeds in my efforts to fix things so I probably need to tune them back in for the new nozzle.
Thank you for your helpful suggestions Buzz & Tony.