My 03 ford 7.3 sometime will not start after it has been running for awhile it acts like it is not getting fuel I can wait for a few min and it will start right up. It does not happen all the time just once in awhile. I have check the codes and nothing show that there is a problem. Any ideas on what's going on

Worn fuel pump? Read Item 6 below:

https://www.askmehelpdesk.com/cars-t...ml#post1415281

Ensure the engine oil and filter have been recently changed. Oil level and condition can affect fuel pressure on PSDs.

I change oil every 5000 miles so that is not the problem but thanks for your help any other ideas?

Worn fuel pump?

Are you using a higher viscosity engine oil than Ford suggests? Or an additive like Lucas? The injectors on your engine are pressurized by the engine oil after it goes through a high pressure oil pump. If the oil gets too thick as it heats up, the injectors won't operate correctly, and will not inject the proper amount of fuel.

I have used the same oil sense the truck was new this has just started in the last few weeks. I use delo