My neighbor has a 1993 Bluebird TC2000, and it was former Georgia. He let me take a look inside and there was a jackknife door. And I think it has a Cummins ISB engine inside.
What is this Bus from Nevada doing in Pennsylvania? Obviously, the State requirements for a School Bus operating in Nevada don't call for equipment aiding in the operation during Cold Weather; but rather, additional cooling equipment to aide in the operation in Warm and Hot Weather.
Batteries are too weak in the Crown. I tried it back in December when it was maybe 40 out and it cranked very slowly. The last I had that bus running was when I did the video back in November. Actually I tried starting the grey international last week and much to my surprise, the batteries were too weak in that too. That bus usually fires right up. But those batteries are quite old; maybe time for new ones.