Wont start but you can hear fuel pump run when you turn key on

Tiny
BLUEMAN1
  • MEMBER
  • 2004 FORD F-150
  • 5.4L
  • V8
  • AUTOMATIC
  • 150,000 MILES
Can a fuel pump relay sensor cause a car not start?
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Thursday, March 27th, 2014 AT 1:20 PM

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Tiny
JDL
  • EXPERT
Is your fuel pressure correct? The fuel pump prime doesn't need an rpm signal, but, after a few seconds if no rpm signal, no fuel pump operation.

Engine cranking, do you have spark at the spark plugs? Do you have an injector pulse?

Check for applicable trouble codes. To check codes, yourself, at the least, you need an obd2 code reader.
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Thursday, March 27th, 2014 AT 1:46 PM

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