I am having an ongoing hard starting issue in my 2007 F150. Most of the time it will not start on the first turn of the key. Just cranks and cranks. If I turn it off and then on again it fires right up. I have a EDGE display (not for programming just data) and it shows no fuel pressure at start up. Usually builds slowly... when I turn the second time it already is at 15-25 psi so builds fast and the motor fires right up.

On a sidenote my truck has a supercharger. I don't think it is related. The problem appears to be the fuel rail is not holding pressure. Other than the ball valve in the fuel pump is there anything else that it could be? On lieu of replacing the fuel pump (which is relatively new) I was thinking I would put a check valve in the fuel line...

Any and all suggestions are appreciated!

 

FPDM. Also change the fuel filter.

 

glc is right. Check the FPDM and change fuel filter.

 

FPDM and Fuel filter are both relatively new (2 years). Live in San Diego so rain/snow not really an issue. Any other ideas?

 

The FPDM still could be bad, especially if it's not a Motorcraft. Fuel filters should be changed at least every 30k.