I have a 2004 guest no power going to fuel pump

there is a recall for the inertia switch, may not be tripped but its not letting voltage thru.other than actually checking for power at the fuel pump.top of the fuel tank.

you sure its not a security problem ? are you using the right key you always have ??

the pump is most likley bad go get a new one if u have power at plug the pump is bad i had that happen lots of times

Hi Tara,
I would crack the fuel line at the fuel rail and crank the engine, if you have fuel, you know the pump is working. If you have no fuel, check for power at the fuel pump. If there is power at the pump, you will probably need a fuel pump. Let me know if that helps, thanks.

Eddie,
www.simple-car-answers.com

wires are crossed and check fuel pump fuse and relay

The pump is in the tank, the tank is in the rear (follow the big hose from where you fill it up) but dont just go put a pump in, check fuel pressure and make sure the pump is indeed getting power before replacing it. I cant tell you how many people replace a pump for no reason. I would have a shop check it for you.

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.


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 ?

relay

Remove the Air breather , put a little fuel into the carb if it starts test to see if there is power to the fuel pump if there is power to the pump you will need a new fuel pump if there is no power to the pump change the fuel pump relay .