Intermittent - Have to hold key to start position for 3-5 sec before starts.

Tiny
AKRAVITZ
  • MEMBER
  • 2000 FORD EXPLORER
  • 169,000 MILES
2000 4.0 SOHC v6, starts right up most of the time then at times I need to hold the key in the start position for a few seconds before the truck starts. You can hear the fuel pump kick on and I have tested the fuel pressure which is within specs. And can always here the starter going. I have cleaned MAF sensor and have cleaned my Idle Air Control Valve. Checked the connections on the starter and all are good. New battery.

What else can I check?
Wednesday, September 25th, 2013 AT 4:26 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
If the starter is cranking, my guess is that the fuel pump is losing its prime when the key is shut off and taking a few seconds to build pressure. When you checked it for pressure, was it within the manufacturer's specs? Did you pay attention to pressure drop off?
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Wednesday, September 25th, 2013 AT 5:50 PM

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