My engine does not start up and run?

Tiny
BUCKBELL66
  • MEMBER
  • 1999 FORD F-150
  • 5.4L
  • V8
  • 4WD
  • AUTOMATIC
  • 200,080 MILES
Can you help me fix it please? I need to get to work
Saturday, June 1st, 2019 AT 4:09 PM

2 Replies

Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello, I'm Danny.

This sounds like a fuel pump or the crankshaft angle sensor has gone out. When you turn the key to the on position without cranking the engine over can you hear the fuel pump run in the tank for 5 seconds?

https://www.2carpros.com/articles/car-cranks-but-wont-start

Please run down this guide and report back. Sounds like a faulty in-tank fuel pump.

Here is a tutorial showing what is involved for its replacement:

Also including a tutorial showing how to test the pressure. If you don't have a fuel pressure tester your local auto parts stores have a loaner program and can rent you one.

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

https://www.2carpros.com/articles/how-to-replace-an-electric-fuel-pump

The fuel pressure specifications with Key On-Engine Off are 35-45 PSI. Hope this helps and thanks for using 2CarPros.
Danny-
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Saturday, June 1st, 2019 AT 7:28 PM
Tiny
BUCKBELL66
  • MEMBER
  • 1 POST
It was the crankshaft sensor. Btw, sorry for the late response.
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Saturday, January 16th, 2021 AT 11:27 AM

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