I'm just put my rebuilt 4.9L back in my 94 F-150 and i am having problems getting oil pressure. i replaced the sending unit mith a mechanical gauge and it's only reading about 5psi anyone have any ideas what could be wrong. (brand new oil pump was put in during rebuild)

 

pull out the fitting and start engine and see how much oil pumps out might be teash in galley or just need bleeding

 

Thanks i'll try that and let you know what happens.

 

Ran it and it shot out quit a bit of oil. Hook back up the mechanical gauge and still only about 5-6 psi.