F150 NO POWER TO FULE PUMP

2004 Ford F-150

Tiny

imassari

March, 2, 2009 AT 6:25 AM

Electrical problem
2004 Ford F150 V8 Four Wheel Drive Automatic

Hi, It seem I'm having no power to the fuel pump. Could you provide wiring diagrams or suggestion on what/how to check? I'm in Italy and it's kinda hard to get proper assistance, please help.
Thanks
Ivan

FOUND 120 RELATED QUESTIONS

Fuel Pump No Power

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5 Answers

Tiny

JDL

March, 2, 2009 AT 9:25 AM


http://www.2carpros.com/forum/automotive_pictures/170934_inertia_switch_1.jpg



Check the inertia switch first, it gets feed from the pump relay. Do you have good spark at the plugs?

Tiny

imassari

March, 2, 2009 AT 9:35 AM

Yes, I've already checked that, and I have good sparks, it just don't get any gas.

Thanks for further support

Tiny

JDL

March, 2, 2009 AT 10:24 AM

With the engine cranking, do you have voltage at the inertia switch, both wires? If there is no voltage there, you need to check feed circuit to that switch.

Tiny

imassari

March, 2, 2009 AT 11:03 AM

I'll check these wires, on which one (two?) Should I find +12Vcc?

Tiny

JDL

March, 2, 2009 AT 12:16 PM

Dark green wire with yellow stripe and orange wire with black stripe. If those have good voltage, next step is the fuel pump driver module, I don't have exact location, underneath rear of vehicle.

If there is no voltage on the wires mentioned, test at the fuel pump relay.

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