Thanks for the information.
Sorry. JA does not allow any other contact other than on here. Sorry.
Since you have pressure on the hand primer, I assume that the engine has enough pressure to crank. You may not here a popping on an 8YL engine.
There are only a few other things that can cause the engine not to crank and run.
First is power to the ECM. A good way to tell is the ECM is getting power is the check engine light. When you turn the key to the on position, the check engine light should come on then go off. If it does not come on, the ECM is not getting power. I would check the fuses.
Second is the engine speed timing signal. This signal comes from the 2 sensors that are located on the drivers side of the engine, behind the front cover.
Third I would be concerned with what is called the Injection Actuation Pressure Control valve. Or IAPCV. It is located on the HEUI pump and is a known problem on these engines. When these fail, it can keep the engine from starting and running. If the IAPCV has failed, the ECM normally has flash code 39 logged.