Crank will not turn over

Tiny
QUEENB1389
  • MEMBER
  • 2003 FORD EXPEDITION
  • 5.4L
  • V8
  • 4WD
  • AUTOMATIC
  • 209,754 MILES
Changed alternator, tested battery, checked fuel pump, checked relays. Why won't turn over? Please help!
Sunday, January 12th, 2020 AT 10:50 AM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,758 POSTS
Hi,

If the starter engages and the engine doesn't start, it can be several things. First, although you hear the fuel pump, it may not be producing enough pressure to start the engine. Or, there could be a loss of ignition spark to the plugs. Here are two links that I need you to check out and perform the tests indicated:

https://www.2carpros.com/articles/how-to-test-an-ignition-system

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

Here is a link that covers the most common causes for a crank no start condition. Take a look through it.

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

Now, here is a simple test. Since the starter is turning the engine, see if it will start using starting fluid. If it does, then we know it is a fuel related issue. If it doesn't, then suspect ignition spark.

____________________________

If I totally misunderstood you and the starter won't engage, let me know.

Take care and let me know the results.

Joe
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Sunday, January 12th, 2020 AT 8:35 PM
Tiny
QUEENB1389
  • MEMBER
  • 2 POSTS
I had just put gas in it at gas station then I put pulled forward then it turned off. So I checked the fuel injectors and hit the fuel reset switch and checked all my relays cleaned out my fuel filter cleaned out the air filter and still nothing.
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Sunday, January 12th, 2020 AT 9:12 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,758 POSTS
I suspect either the fuel pump has failed or there is no spark. Do you feel comfortable performing the tests I listed above?

Joe
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Sunday, January 12th, 2020 AT 10:25 PM

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