02 5.4 turns over but doesnt start (not fuel pump)

[severedf150]

my 2002 expedition 5.4 turns over doesnt start. yes it has fuel pressure at the rail. yes i sprayed fluid into the intake. yes it has spark. I changed the crank sensor and cam sensor. when you listen to the fuel injector with a stethoscope while someone is cranking it over; you hear "click click, pause; click click pause" and so on. I thought it was supposed to be a continuous "click, click, click, click" (I also listened to my running mustang and two other running cars in my driveway and they all constantly clicked)? oh and yes i listened to all the injectors not just one. please help. thank you.

 

[KWT2000]

how much fuel pressure do you have 20psi will spray when you push the schrader valve but thats not enough pressure to start a multi point fuel injected engine... pull the codes if its not getting signal from the crank and or cam sensor it will throw a code.... hope this helps

 

[JUST4FUN]

were you able to keep it running on fluid if yes its a fuel problem

 

[cwshakey]

I know you have tested some of these, this is just my list of things that I check. Maybe one of them will help. Also I am not sure about your 02, but my 06 injectors constantly click.


The most likely causes are:

• A dead fuel pump (could be the pump, pump relay or wiring circuit);
  
• A plugged fuel filter;
  
• Low fuel pressure (weak pump or restricted line); or
  
• No pulse signal to injectors (bad injector relay or PCM driver circuit).

 

[Condog09]

Just because the injectors "click" does not mean it is actually spraying. The clicking sound is the solenoid inside the injector getting power but not nessisarily opening and closing. Pull out the injectors on the rail and place them over/near the port so it will spray into the port and make sure all the injectors are spraying. If they dont replace them, "cleaning" and injector will only buy you time until you have to buy a new one, replacing them is recommended. Also if you have a scanner or have access to a scanner tell me what the fuel trims are when cranking and also other pids if available. Thanks!

 

[dano]

no start but crank

Hope you have it fixed my now, but I'm guessing Fuel pump driver module.