Cummins x15 with paccar fuel filter

Probably get a better response in the mechanics section.
Maybe @spsauerland or @Goodysnap will see this

 

If it runs for a few seconds, and dies it sounds like air in the system some where.

 

It's an issue that is known to Cummins, you have to upgrade the filter or use Cummins' fix.

Cummins X15 performance fuel problems, filters plug up very fastt

 

Does it have the tall paccar bottom bowl? Between this filter and the engine filter it can take multiple key cycles to completely purge both filters of air and fill them with fuel. Cranking the engine with air still left in the low side will force air up into the commonrail and the injectors which can only add to the extended cranking.

Try this.........After installing filters. No need to pre-fill. in fact it is recommended that you don't for fear of inducing dirt to the system and damaging the pump or the injectors. Turn the key on. the pump will run for 2 min. Key on and off at least twice. On the third Key on, watch in the fuel tanks at the return pipe for air bubbles to clear. Once the bubbles are completely gone, try to start the engine.

If you still have issues, I would suspect the system is drawing a small about of air somewhere and be checked for air in fuel on the suction side. Possibly a cracked pickup tube or suction leak.

 

I agree 5 times is excessive. I would say typically 2-3 times would be adequate to prime and start the truck after servicing both filters on a previously running truck.