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sprinkles08, ASE Certified Technician
Category: Ford
Satisfied Customers: 22830
Experience:  ASE Master and Advanced level certified. Factory trained with 15 years dealership experience
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I have a f150 lariat 5.4 gas and when truck was already

Customer Question

I have a f150 lariat 5.4 gas and when truck was already running I tried to start it and it shut down now it wont start when you put key in and turn it it keeps on trying to start on its own for a few seconds but wont start
Submitted: 1 year ago.
Category: Ford
Expert:  sprinkles08 replied 1 year ago.

Hello and welcome to JustAnswer!

There are many thing that will cause a no start condition. You may be missing spark, fuel or both. You may have something such as a cam or crank sensor failure, it could be wiring or even the engine controller itself.

Does the fuel pump run when the key is first turned on?

Have you checked for fault codes?