2004 Ford F150 Logo
Posted on Jan 11, 2010
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New fuel pump and secondary fuel mod and still won't staart ( no fuel )

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Anonymous

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  • Posted on Jan 11, 2010
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Not sure what secondary fuel mod you are posting about, can you explain what this is ?
Have you checked the fuel inertia switch in the passenger side kick panel ?
Is this a 2004 New Body style or 2004 Heritage / Lightning ?
If it is a New body style, have you checked / replaced the fuel pump driver module ? This is on the cross member by the spare tire, and some times they get corroded and crack.
new fuel pump and secondary - 44248c8.jpg

The fuel pump is powered from the Fuel pump relay ( non serviceable in the Cab fuse panel ) to the fuel inertia switch to the fuel pump driver module. The PCM is also connected to the fuel pump driver module
The fuel pump relay normally open contact is powered by Fuse #34 ( this fuse also feeds the PCM ). The fuel pump relay coil is powered by the PCM power relay.
If you are testing and the truck has not started, the PCM will shut off the Fuel pump after 5 seconds ( 8 ? ) of not having started. The only way to clear this is to have the truck start, or disconnect the battery.
Have you tested the fuel pressure on the fuel rail ?

luis

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  • Posted on Jan 11, 2010
luis
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Did you train your fuel lines there may be bubbles in your fuel line

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