Starting problems? 5.0

[Chef Sharkos]

97 Ex 5.0. Usually on a cold start, I have difficulties starting it. I turn the key to start and it starts but I have to hold key for another 3 seconds or so so it won’t die. If I don’t hold for additional few seconds, will most likely die out. My voltage for battery and alternator are fine. Thanks

 

[Turdle]

Does the check engine light turn on with key and turn off once engine is running? Does it light up at all? is it lit while engine is running?

 

[410Fortune]

USUALLY hard starting, long crank on a 5.0 is lack of fuel pressure
Its quite possible your fuel pump is dying/dead
Fuel rail pressure test needed. Fuel rail pressure should be 34psi +/-
Check for fuel pump to come on when key is first turned, do you hear it run for 2 seconds? How does it sound? Healthy or does it sound like struggling/whiny? Check fuel pump relay and fuse for corrosion, bad pins, etc
Fuel rail pressure test will tell the tale

How many miles?
factory pumps usually last 160-220K miles on these dudes

NO start would be different, crank sensor, mega fuse, etc.........

 

[Chef Sharkos]

Does the check engine light turn on with key and turn off once engine is running? Does it light up at all? is it lit while engine is running?

the check engine turns on with key but turns off when started

 

[Chef Sharkos]

USUALLY hard starting, long crank on a 5.0 is lack of fuel pressure
Its quite possible your fuel pump is dying/dead
Fuel rail pressure test needed. Fuel rail pressure should be 34psi +/-
Check for fuel pump to come on when key is first turned, do you hear it run for 2 seconds? How does it sound? Healthy or does it sound like struggling/whiny? Check fuel pump relay and fuse for corrosion, bad pins, etc
Fuel rail pressure test will tell the tale

How many miles?
factory pumps usually last 160-220K miles on these dudes

NO start would be different, crank sensor, mega fuse, etc.........

I figured maybe my fuel pump, I need to change my filter too, fedex takes too long of course. I changed it on my old explorer Sohc cause in reverse at a slant (entering driveway) it would start surging. I do hear the pump prime when the key is turned, little high pitched maybe