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My engine does not run why?

Tiny
CMPRGUY65
  • MEMBER
  • 1998 FORD F-150
  • 5.4L
  • V8
  • 4WD
  • AUTOMATIC
  • 203,000 MILES
I purchased this truck recently. The guy told me the fuel pump, fuel filter, plugs and wires were recently changed. I put a battery on it and scanned it with scan tool. No codes showed. I can hear fuel pump coming on. I cannot start it from key. I bypassed key to solenoid switch them it turns over and starts but runs for a few seconds then shuts off. The key switch okay so hard to to turn to on position. What can cause this problem?
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Tuesday, April 11th, 2017 AT 4:02 AM

3 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
It may be a security system issue, try a reset as battery was replaced. A lot of times this happens when battery is disconnected. also, if you have another key try that not a new key. if still not starting have a mechanic scan for codes see if there is a problem with security system.
See link.

https://www.2carpros.com/articles/how-to-reset-a-security-system

Also 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.
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Monday, May 31st, 2021 AT 12:42 PM
Tiny
CAJUNGUY65
  • MEMBER
  • 3 POSTS
Thanks you for the guides it has the fuel pump I got a new one fix it! Thank you so much!
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Monday, May 31st, 2021 AT 12:42 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Nice work, we are here to help, please use 2CarPros anytime.
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Monday, May 31st, 2021 AT 12:42 PM

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