two mules

Batteries hot and voltage is good

I have a 2007 mack CXN612 with a aset 310 engine, parked it last nite, went to start this morning and sounded like out of fuel. The diver said it was surhingba lil when he parked it, it only has a water seperator filter assembly. Cannister was nearly full, indicating filter neede replaced. Changed filter, hit the engine with starting fluid, started but wont stsy running, still sounds like no fuel. Filter fills with fuel, has pressure leaving filter. Any ideas ?