Question about Lincoln Navigator

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Fuel pump driver module location

2007 lincoln navigator. Where is the fpdm. Its not under the spare tire. Fuel pump driver module

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Fuel pump is actuated by the PCM. engine computer.The fuel pump module it self is in the tank. ie pump, gauge sending unit.

Posted on Dec 06, 2012

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  • Nathan Dec 06, 2012

    Then why does for list a FPDM for the navigator, with mounting brackets for the frame.

  • Jeremy Nottingham
    Jeremy Nottingham Dec 06, 2012

    I worked for FORD MOTOR Co. dealer for 3 yrs I never heard of what your describing. Fuel pump modal is in the tank, fuel filter is along the frame, The "driver" is the pcm,turns on fuel pump.

  • Jeremy Nottingham
    Jeremy Nottingham Dec 06, 2012

    I stand corrected, you are right. It should be located on a cross brace above the spare tire to the front of truck.


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Metty@att.netFuel pump not working

Did you check the Fuel Inertia Switch in the passenger side kick panel ?

If you did, and it is not tripped, might want to check the FPDM ( Fuel Pump Driver Module ) to see if it has corrosion built up behind it, and cracked the PC board.

Here is what mine looked like on my 2006 ( salt in winters )

This is the wide picture showing location.

The FPDM is mounted to the cross member, just in front and above the spare tire under the rear of the truck ( drop the spare tire to see it ) .. This picture is taken from the rear bumper, facing the front of the truck. The cable on the right is the spare tire lift and the tire on the left is the driver's side rear tire.

The new PFDM has stand offs to stop corrosion from cracking the module

Check the P/N to make sure there are no new revisions

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Is it a crank no start or a no crank no start ?

When you turn the key from off to run, does the theft light ( the blinking LED in the wart on the dash ) go out ?

Have you checked the fuel inertia switch in the driver's side kick panel ?

Another one for crank no start is to take a look at the FPDM ( Fuel Pump Driver Module ) on the cross member above the spare tire. Some trucks are having corrosion build up under the module, and it cracks, causing a symptom that is the same as a bad fuel pump.

Here are the pictures of my 2006, ~ 45K miles ( Chicago winters with salt )
The picture is taken under the truck with the spare lowered ( cable on the right of the picture ) towards the front of the truck ( driver's side rear tire on left ) :

Mine was still working for the moment, but the module would have cracked in short order had I not installed the new revision

New version with stand offs installed :

This is the version I got, if you need this, make sure the part number does not have a newer revision

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I have a 2005 Ford F-150 5.4L V8 with 140K miles that won't start. Turns over fine. Suspect ignition system or outside possibility of fuel filter. What should be checked and how?

I would start by checking the FPDM ( Fuel Pump Driver Module ) on the cross member by the spare tire.

Drop the spare tire, and check the FPDM to see if it is cracked. My 2006 the case was cracked when I changed it, sure it was not too long before it would have cracked the circuit board

Taken pointing the front of the truck, driver's side rear tire on the left of the picture, the cable to the right is for the spare tire.


This is how far mine had cracked

This is what the fuel inertia switch feeds power to, and the PCM controls to operate the fuel pump.

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Is this a case of crank no start, or no crank no start ?
Will the truck start in neutral ?

If you turn the key from off to run ( do not start ) does the theft light on the top of the dash go out ( this is the LED in the wart on the driver's side ).

Have you tried resetting the fuel inertia switch in the passenger side kick panel ?

If you get a crank no start, and the theft light is going out, might need to check the FPDM ( Fuel Pump Driver Module ) to see if it is cranked in half. The FPDM powers the fuel pump, after the fuel inertia switch.

You need to lower the spare tire to get a good look at it.
This is mine from my 2006 F-150, it was still working, at the tiem I changed it, the housing was the only thing cracked.

This is taken from the rear bumper, facing the front of the truck. Driver's side rear tire on the left, the cable on the right side of the picture is for the spare tire winch.

This is the FPDM close up, the housing was only borken on mine, but the corrosion would have soon broke the PC board in the FPDM.

The new one has stand offs to alleviate the corrosion pushing on the FPDM.

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The other items
1. Fuel Inertia switch ( assume you checked this, but it was not called out )
2. Teh Fuel Pump Driver Module ( FPDM ) on the cross member under the back of the truck. You need to drop the spare to see it.
There is a TSB on this, where corrosion can build up between the aluminum FPDM case and the steel cross member, causing the module to crack.
Here is what mine looked like before I changed it on my 2006
The cable is the spare tire lift cable and the picture is facing the front of teh truck, the tire is the driver's side rear tire.

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If you did not get an owners manual with your truck ( purchased used ), you can download one from Ford :

The other problem could be the FPDM ( Fuel Pump Driver Module ) on the cross member above the spare tire ( need to lower the spare to see it ).
There was a problem with the factory ones, where corrosion would build up behind the module ( aluminum FPDM and steel cross member, dissimilar metal corrosion ? ) and cause the module to crack & the PCB in the FPDM would also crack.
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Start by checking the Fuel Pump Driver Module, which is located on the cross member above the spare tire. ( this is taken from the rear of the truck, the cable is the spare tire winch ).

Could be the FPDM is on its way out, and you are experiencing the loss of power to the fuel pump.

The FPDM takes the input from the PCM, the Fuel Inertia switch ( passenger side kick panel ) to run the fuel pump. The fuse is Fuse #9 to the Fuel Pump Relay ( built into the fuse panel, not an easy user servicable item ) to the fuel inertia switch to the Fuel pump Driver Module ( the route for the power ).

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