5500 Onan Diesel Gen 5.5 HDKBA

Electric fuel pump is easy cheap repair if bought at O'Riellys or AutoZone. Symptoms you describe lead that way.

Fuel Pump (electric) Airtex E11020 EXACT replacement for Onan 149-2790 or 149-2692 $60-70

This is the pump used on all the bigger Onan diesels, assuming it is probably the same for a 5.5. Check it out. They have been known to fail at 50 hours or run for 2,000. I have replaced them every where in between. BTW Cummins will hit you for about $165 for the exact same pump with a Cummins label stuck over the Airtex number!!!

Ronfisherman, hello. Hope you have been fine. Yes, I have the downloaded the manual and did all the basics. Even though I had a 1/2 tank of fuel I am going to fill it up and try it again, now that I did all the maintenance. I have a little less then 1/2 tank of fuel. Thanks for the info. Take care, oh we moved back to San Diego area from Deming. Last year we did a 45 day cross country trip to the east and back.

Over on the Kodiak Chassis forum (linked in my signature) there is a manual for the QD5500. Some of the fixes are normal maintenance repairs. Others a big dollars. First item in repair list is make sure it has fuel.