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Turns over strong but no start?

Tiny
TAMMY HORTON-HOUGHTON
  • MEMBER
  • 1999 FORD CROWN VICTORIA
  • V8
  • 2WD
  • AUTOMATIC
  • 200,000 MILES
Okay, so we've replaced crank sensor, fuel filter, was going to replace fuel pump but it works I can hear it but not priming, and then I go out turn the wheel slightly to the left and it will start right up and then after 2 hours go out and it will turn over but not start. Help
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Thursday, December 29th, 2022 AT 9:23 PM

8 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,602 POSTS
If the fuel pump has no pressure the engine will not start. This guide will show you how to check the pressure and you can rent a fuel gauge from the auto parts store for free or cheap and this guide will help you step by step.

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

Engine Running Fuel Pressure 210-310 kPa
Key On, Engine Off Fuel Pressure 240-310 kPa

This guide can help as well:

https://www.2carpros.com/articles/car-not-running-advanced

I have included how to change the fuel pump out in case you need it. You will need to drain the tank first, this video will help:

https://youtu.be/Q5MH2gnyFH0

Check out the images (below). Please let us know what you find. We are interested to see what it is.
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Friday, December 30th, 2022 AT 1:23 PM
Tiny
TAMMY HORTON-HOUGHTON
  • MEMBER
  • 5 POSTS
Fuel pressure is good, how do I disengage anti-theft?
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Saturday, December 31st, 2022 AT 9:27 AM
Tiny
TAMMY HORTON-HOUGHTON
  • MEMBER
  • 5 POSTS
There's no check engine light on no anti-theft light.

Shows no codex but my anti-theft on dash in front of driver is flashing always. Any ideas on?
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Saturday, December 31st, 2022 AT 9:34 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,602 POSTS
If the anti-theft on dash is flashing it will not start until the system is reset, I would disconnect the battery overnight to see if that fixes it. Let me know.
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Saturday, December 31st, 2022 AT 1:30 PM
Tiny
TAMMY HORTON-HOUGHTON
  • MEMBER
  • 5 POSTS
Had it disconnected and still didn't start. Went out this morning and started right up like nothing ever Happened and now won't start again?
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Monday, January 2nd, 2023 AT 7:03 PM
Tiny
KEN L
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  • 47,602 POSTS
Is the security light flashing?
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Tuesday, January 3rd, 2023 AT 11:31 AM
Tiny
TAMMY HORTON-HOUGHTON
  • MEMBER
  • 5 POSTS
Yes, but got it to start by slowly turning key and then waiting for all lights to clear on dash then it was stopping from flashing.
But now it's done it again.
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Saturday, January 7th, 2023 AT 11:01 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,602 POSTS
So, the light is not flashing? If so, the problem must be spark or fuel related, let's try to see if it will run on starting fluid and if not let's check the system for spark.

https://youtu.be/baq_aEWNQ0Y

Please go over this guide and report back.
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Sunday, January 8th, 2023 AT 5:47 PM

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