2008 f150 4x4 ford lariat fuel pump not working not gettin electricity

SOURCE: 1988 ford truck f-150 xlt lariat cant get current to fuel pump

Have you checked the 'inertia switch' which in the event of an accident shuts off the fuel supply to prevent a fire . It's usually located in the cab on pass. side. Some models have one reset button, some 2 which have to be pressed at the same time. If that's not it, here's how the power to the pump SHOULD work, you will have to follow the path to see where it stops. When you turn the key on it turns on the EEC power relay on, this relay then provides power to the PCM (power control module) and the control side of the fuel pump relay. Power for the fuel pump is supplied through a fuse link or high current fuse attached to the starter solenoid (battery side). From the fuse link or high current fuse current flows thru the fuel pump relay and inertia switch to the fuel pump. The fuel pump relay is controlled by the PCM. When the ignition switch is turned on the fuel pump will operate, if the switch is NOT turned to start position, the PCM will shut off the fuel pump off after 1 second. This is to avoid flooding the engine when it is not running, just key on. So check out to see if you have a fuse link or a high current fuse and if they are blown.

SOURCE: electric fuel pump replaced and still not working on a 1994 ford

check the fuel pump relay, check ingition module

Marvin

• 85242 Answers
• Posted on Dec 05, 2009

SOURCE: 2008 Ford F450 fuel pump relay fuse keeps blowing.

the fuel pump and radio are not on the same circuit, most liokely the fuel pump is shorted, that is the most common cause, get under the truck and disconnect the fuel pump connector at the tank, if the fuse doesn't blow then u need a new pump.

SOURCE: 1997 Ford F150 Electric Fuel Pump will npt pump

Did you check the fuel inertia switch in the passenger side kick panel ?

The fuel pump is powered :
the fuse to the fuel pump relay.
The fuel pump relay to the fuel inertia switch
The fuel inertia switch to the fuel pump itself.

At the fuel inertia switch in the kick panel, power from the relay is the Dark Green w/ Yellow stripe wire and the pink w/ black stripe wire is the power. from the fuel inertia switch to the fuel pump.

If you jumper the fuel pump relay, you should hear it run. If not pull the fuel pump relay, and check the pins in the relay socket, pin 30 should be the power from the fuse.



If you have power at pin #30, jumper the relay socket as shown with the red line above, and check the dark green w/ yellow stripe wire at the fuel inertia switch for power.
Press the button on the top of the fuel inertia switch, and check for power leaving the fuel inertia switch on the pink w/ black stripe wire.

This is tests good, check for power at the fuel pump, same pink w/ black stripe wire.
Fuel inertia switch info is in the owners manual, If you did not get an owners manual with your truck ( purchased used ), you can download one from Ford :
https://www.fleet.ford.com/maintenance/owners_manuals/default.asp

SOURCE: The electric rear sliding window

If the power windows still work, it is not a fuse issue, they share the same fuse ( F401 form the accessory delay relay )

Either the switch or the motor is the cause.

When you press the button to the close direction ( with the window closed ) do the lights dim ( headlamp / interior lamps ) ?
If they do, the window is getting power in that direction, so it could be the switch for the open direction or the motor, or something in the track.

If you pull down the overhead console ( the non rail one is open the sun glass compartment, and pull down on each rear corner, it is held up with spring clips ) the wires to the slider are Red w/ yellow stripe and yellow w/ light blue stripe.
If you apply power to these wires, one direction is open, the reverse is close. Test direct to the wires to know if the slider motor is the issue or the switch.


Check the entire track for obstructions

To get the slider motor, you need to remove the rear seat back