Erm... the fuel injector pump maybe? I donno really, and realize that's a major thing to know if I'm asking y'all about cost (Can we say "DOH! moment"... I knew ya could
). Unless I write it down immediately, my brain does awful things with technical terms (thus my technical terms tend more towards words like "ick" and "that thingie"). Right this minute, since I'm still trying to learn what stuff does, it all kinda runs together in my 'widdle head.
Tommy crawled all over the engine, checking different fuel ports, the filters, etc. He checked electrical current to the fuel solenoid first, then when that didn't work, jumped some wires with his clips and got it working. Didn't seem concerned with the electrical short. Said it wasn't a big deal. Which I take to mean it's an easy fix for him.
Then he pulled open a fuel line and told me to start the bus - then motioned me to cut it off when we got fuel. So then he methodically went along the fuel line, cracking different spots and had me crank it each time until he found a spot that wasn't getting any fuel. That's when he made very unhappy noises and said it was the fuel pump. I didn't know there were different types. I don't remember exactly which pump he said it would be, but he did say it was the second most expensive part of the bus next to the engine itself.
I think I'm starting to take these "bad news" episodes pretty well.