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1999 Ford Explorer Slow starting

Tiny
DPH
  • MEMBER
  • 1999 FORD EXPLORER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 110,000 MILES
Car normally starts within 1 or 2 seconds of turning the ignition key. Lately, it has been taking up to 10 seconds, lots of cranking. Had it checked at the local Ford dealership, $100 later no problems identified. They indicated it might be a failing fuel pump, but wanted it overnight to diagnose. Battery is new.
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Tuesday, September 8th, 2009 AT 3:02 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
It could be the fuel pump itself or something called fuelpump drop off which basically means you loose pressure due to a leak, faulty pump, or a leaking fuel injector. As a result, you need to crank the engine until the pressure is regained. What I would like you to do is check for this. Here is a video how to and directions for checking fuel pump pressure and drop off. You will need a gauge to do it. Many parts stores will lend or rent the gauge to you.

https://www.2carpros.com/how_to/how_to_check_fuel_pressure.htm

Let me know what you find.

Joe
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Tuesday, September 8th, 2009 AT 6:51 PM

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