f150 wont start
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New User
Joined: May 2014
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f150 wont start
Ok I have a 99 f150 lariat 5.4 4x4 i drove it into my yard and turned it off and its never started again. It turns over fine just wont start I have replaced the fuel pump it was noisey anyway switched fuel pump relay its working i checked for fire and have fire at plugs 40 psi fuel pressure finally gave up and took it to my ford dealer they said ecm was bad so I brought back home an pulled my ecm seny out for repair got it back with a note no problem with unit reinstalled it still no start went back to ford they said ecm due to no groung to any injectors I have cleaned all the grounds also checked my key it is rejestering also replaced the reset switch for fuel pump any help. Thanks
Junior User
Joined: Oct 2013
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From: Virginia
Ok I have a 99 f150 lariat 5.4 4x4 i drove it into my yard and turned it off and its never started again. It turns over fine just wont start I have replaced the fuel pump it was noisey anyway switched fuel pump relay its working i checked for fire and have fire at plugs 40 psi fuel pressure finally gave up and took it to my ford dealer they said ecm was bad so I brought back home an pulled my ecm seny out for repair got it back with a note no problem with unit reinstalled it still no start went back to ford they said ecm due to no groung to any injectors I have cleaned all the grounds also checked my key it is rejestering also replaced the reset switch for fuel pump any help. Thanks
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I have power to all injectors iam told they pulse the ground and I never get a ground when cranking or testing
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More Turbo
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Do you have a check engine light with key on engine off?
Maybe do a search on this forum for "coil drivers"
Good luck keep us posted
Fleet Mechanic
Joined: Aug 2008
Posts: 1,446
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From: NE Iowa JD Country
random thoughts;
Is this a manual tranny or Auto?
Make sure it is in Park fully (auto tranny), or try starting in Neutral .
If Manual then is the safety neutral switch bad?
Does your steering wheel feel loose, like it isn't mounted securely??
and you checked all fuses and relays??...sorry had to ask.
Are you sure your missing fuel...not spark?
Is this a manual tranny or Auto?
Make sure it is in Park fully (auto tranny), or try starting in Neutral .
If Manual then is the safety neutral switch bad?
Does your steering wheel feel loose, like it isn't mounted securely??
and you checked all fuses and relays??...sorry had to ask.
Are you sure your missing fuel...not spark?