2013 F-150 4x4 turns over but will not start. No previous symptoms. No codes.

Read a lot about fuse 27 but after examining it appears fine. Not blown. No sign or burning or melting.
After turning on key, I can hear the pump but seems to be quieter than I expected. So I replaced my fuel pump. Still no start. Replaced Fuel Driver control module. Still no start.

Any ideas??

 

can you hear the fuel pump run for a few seconds, when you put the key into the ignition?

 

Yes, I can hear activity from pump. Not entirely sure its pumping as it should. Seems a bit quieter than I expected (compared to my old 2006) but after replacing fuel pump still seems a bit quiet. Perhaps its low voltage and not pumping as it should?

 

what motor you have 3.5 or 5.0? the 3.5 has another fuel pump, the high pressure pump on the driver side valve cover, and also check too see if you have spark at the plugs.

 

its a 5.0L
Is it ok to pull one of the coils, pop a screwdriver in it and put near metal to see if it sparks? Dont know anything about these newer computer controlled system and dont want to do any damage. The pump is making noise but sounds more like a soft clicking.

 

Getting spark.
Can i disconnect fuel line from where it connects to injector rail to see if gas is flowing? Or is there a better place to see if fuel is pumping.

 

disconnected fuel line at pump. started truck and no gas coming from new pump. I do hear soft clicking noise (same as the old pump i thought was faulty) coming from new pump so its getting some power but perhaps not enough to fully engage?

 

Try changing out the #8 relay, you can take the one out of 4,6 or 9 to see.

 

yeah did that

 

What about the fuel module above the spare tire ???? Seems like they cause this symptom frequently ????