Ok, so I fairly sure this issue has been discussed before but here we go. So a little history. I bought my 02 Tb LS base model in 2014 with I believe 181, ??? miles. Had 1 big repair within first 2 years (radiator) This has been a very solid, reliable SUV up until this point.Now 5 years later I've had the worst time trying to find the problem to the misfire. It started @ cyl 4, then random/multiple, then cyl 5, then back to random. I checked and replaced all coils, plugs, a few coil connectors, replaced the fuel pressure regulator, purge valve & vent valve solenoid, fuel filter, fuel pump and sending unit, ignition switch. So last night I wanted to check to see if I had any fuel pressure by releasing some at Schrader valve. None at all. Where do I go from here. I'm about ready to throw my hands up. Any thoughts?