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Discussion Starter · #1 ·
2012 Ford F-150 Ecoboost
Driving on a dirt gravel road around 20-30mph, the left side of the truck ran over a rut in the road. It jarred the truck pretty hard. Immediately after, a wrench symbol appeared on the dash. 10-30 seconds later approximately 300-500 feet down the road a Low Oil Pressure warning shows on the dash. We bring the truck to a stop, put it in park, and the engine shuts off by itself. After that, the engine would crank but not start.

2012 FORD F150 V6, 3.5L; DOCH; 24V; DI; Turbo
Transmission Automatic
Miles: 162585.5

Average Driving Conditions: 50/50 Highway Driving
Average Terrain Conditions: Mostly Paved Roads
Average Weather Conditions: Susceptible to both Rain and Snow

OBD2 CODES:

Ford OEM Enhanced Continuous Memory DTCs:
P00C6
P025A
U0109
U0422

Ford OEM Enhanced KOEO:
P025A
U0109
U0422

FordSRS:
U0155
B11D8
 

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2006 Lincoln Navigator
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Welcome to the FFO!

Likely the bump in the road was not the only factor, just the most recent factor.
Truck is driven on average 18,000 miles a year. (It isn't parked long)
Has the truck been well maintained?

If you shut off the engine and restart what happens?
P025A is fuel pump driver module.
This part turns the fuel pump on and off and regulates pressure
Located on the left rear frame rail behind the rear tire. Known to have case issues with corrosion


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2006 Lincoln Navigator
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Well I am wrong. This is the revised fuel pump driver module made of plastic. It still may be bad but not from corrosion. If bad it will cause the P00C6 code AND the U0109
After turning key from off to run (do not start) can you hear the fuel pump come on for a moment?

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PO25a fuel pump module control open
Uo422 Invalid data from body control module
 

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Discussion Starter · #6 ·
since posting, i have got the truck to start. first time i tried it cranked but didn't start, second time it started as soon as i turned the key. it ran fine, went into drive, reverse, neutral, and park. i turned off the engine, tried to start it again and it wouldnt, just crank. after a while of looking through the freeze frame data, i tried to start the truck again. it struggled to start and i gave it a bit of gas and in started up but immediately shut off. has only cranked with no sign of starting since.
 

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Discussion Starter · #7 ·
Welcome to the FFO!

Likely the bump in the road was not the only factor, just the most recent factor.
Truck is driven on average 18,000 miles a year. (It isn't parked long)
Has the truck been well maintained?

If you shut off the engine and restart what happens?
P025A is fuel pump driver module.
This part turns the fuel pump on and off and regulates pressure
Located on the left rear frame rail behind the rear tire. Known to have case issues with corrosion


Action
truck is driven regularly from work and back(20min round trip). also well maintained with no previous problems.
 

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At Fuel Tank
# G8az 9d370 A
Gas conrol unit
Action showed the Photo above
Right around 40.00 $
 

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2006 Lincoln Navigator
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If the fuel pump driver module is having issues you will not have enough fuel pressure to operate the fuel injectors.
That driver controls the fuel pump. The pump varies pressure as the need is determined. There are sensors as far as fuel pressure at the engine. Those sensors will tell the driver to increase or decrease pressure as needed.

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2006 Lincoln Navigator
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This diagram is for a 2010 F series. Should be close enough.
The module is shown on the right

The diagram was used to show some one how to power up the fuel pump by by-passing everything else.

The sensors for fuel pressure are run to the PCM. The PCM controls the module.

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Discussion Starter · #11 ·
Hypothetically speaking, if its not the fuel pump module control, what else could the issue possibly be?
 

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2006 Lincoln Navigator
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Don't assume it IS the module.
I would be testing the power at the module from the PCM
Make sure the ground is connected tightly
Test the pump to make sure it is operating with power

Other possibilities -
Bad wiring
Bad connector
Bad pump
Bad fuel pump relay

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The top 3 wires from and to the module and PCM are the signals that generate the code P025A. There is no sensor on the pump but if the pump is not activated within the module that code could be generated.

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I think being nice is one of the things we do. And some do not care if it is nice or not.

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So was the oil level low and did you add oil?
 

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I suspect a problem with the oil pressure sender or oil pump and ignition is killed without oil pressure....
 

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Discussion Starter · #19 ·
I suspect a problem with the oil pressure sender or oil pump and ignition is killed without oil pressure....
low oil pressure warning was triggered just because the engine shut off unexpectedly. since the oil pump shut off when the engine died. oil is perfectly fine, no leaks were found. and oil pressure is normal
 

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Had a Mustang the other day
Car come in with no oil pressure
Put a Manual guage on it
Had oil pressure
It was an electrical problem
 
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