Well I got out and tried cracking open all 5 lines to the injectors. After several attempts at cranking the engine, only the 5th injector connection (closest to the firewall) ever leaked any diesel. The other 4 injector connections did not give up any fuel. Also, I tried to pump up the hand pump a little more just to see what it would do, and it initially had no resistance (felt like it was only moving air). After about 10-15 pumps it eventually started to feel like it was moving fluid, but it was leaking badly onto the ground. Definitely needs replaced. Other thoughts?