Hi.

Here you go:



AVOID Dorman FPDM's - they are exhibiting a disturbing tendency to fail unexpectedly (not related to corrosion). Despite their 'lifetime' warranty, getting stranded due to this product's poor reliability in the field, it doesn't matter that they are cheaper.

Stick with Motorcraft.

good luck
MGD

 

Where are you getting this info?

 

Everywhere but here. Not enough traffic.

Side note: Dorman Phaser failure ~3K miles - vane fractures - typical failure mode - not the roll pins. Again - no-hassle warranty replacment but that's not much help given where these are located.



Sorry fer going off-topic, OP.

MGD

 

Do you think is a good start ? After everything i do? This Module is under the tire right?

 

Yes sir - a good place to start- cheaper than a new pump, easier to do. Classic 'low-hanging fruit' - literally, lol

The module in on top of a frame crossmember, above the spare tire, left side of the truck. Drop the spare to access it.

( If someone tells you it's on the freaking Axle, tell 'em to go pound salt )

good luck
MGD

 

What is the function of the FPDM.Does it act as a relay to turn the pump on and off or something totally diff.

 

https://www.f150online.com/forums/20...dule-fpdm.html

 

Thankyou GLC

 

Thanks glc, Ikaro and others i have similar issues see "mis fire engine" in this section. This will provide me one more item to investiage before opening my wallet again. it does sound logical if the FPDM is intermitant signal creating weak pressure the engine could see rich and/or lean conditions and the cam sensor tries to compensate. Does that sound correct? never the less thanks. I'll let you know what i find under the spare tonight.


W

 

Well today i replace the Module and once again made a flush and new oil 15w 40 just to try with a new viscosity oil because here in Panamá we are in 35℃ but same. I just follow a recomendation of a mechanic. I feel like more power but in iddle stills Run rough better than Last time. Do u think i need the fuel pump ?the mechanic told me that and the fuel pump. Codes p0012 and p0022

 

15w40 is too heavy for a 5.4 3 valve with VCT. It doesn't matter how hot the outside air is.

You have a VCT issue, both banks. From obd-codes.com:

 

But i already replace phaser and timing kit

 

[QUOTE=glc;5080063]15w40 is too heavy for a 5.4 3 valve with VCT. It doesn't matter how hot the outside air is.

You have a VCT issue, both banks. From obd-codes.com



also vct

 

I replaced vct sensor, phasers, timing kit, what else i need to do? Need Help?