I just bought a 7.3 IDI (1993). the guy said the new fuel lines needed to be bled... bled the fuel lines and it still will not start. It will crank over and it acts like it wants to start... even spraying ether (yes, I know this is very bad for them), it will not start. Now, it is about 30 degrees right now and I know they are cold blooded. But I do not know what else to check for before I spend too much money.