Hard starting

1994 FORD EXPLORER
100,000 MILES • 4.0L • 6 CYL • 4WD • AUTOMATIC
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MGKAPLAN1
  • MEMBER
  • 1 POST
Replaced spark plugs and wires. still cranks long times before starting.
Sep 25, 2020 at 1:24 PM
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DANNY L
  • Experienced Mechanic
  • 5,648 POSTS
Hello, I'm Danny.

I would suggest you test the fuel pump pressure. You might have a weak or failing pump that is not providing adequate pressure. If you don't have access to a tester most auto parts stores have a tool loaner and can rent you one. Here is tutorial showing what is involved for testing:

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

The fuel pressure specification for your vehicle is attached below. Hope this helps and keep us updated to go from there. Thanks for using 2CarPros.
Sep 25, 2020 at 1:38 PM
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