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2007+ Expedition & Navigator 2007, 2008, 2009 and 2010 Ford Expedition and Lincoln Navigator

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  #1  
Old 06-28-2012, 07:00 PM
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Ford Tech Help Needed '07 Expedition Multiple codes

2007 Expedition 70k miles. Friend purchased from dealer and before veh made 2 miles the wrench on dash came on, check engine light, it went into limp mode.

I cleared codes and it was good for about 2wks. multiple codes now

Veh cuts out, gauges go all over and read wrong, speedo quits, goes into limp mode. Shut veh off and it did not want to restart. Cleared codes and it started but went into limp mode, seems like all modules, computers and dash are losing power intermittently.

I am curious if someone has ran into this issue. Seems to me its a loose or partially broken wire or possible computer itself. In all my years of messin' with fords I have changed ZERO Computers.

Partial List of Codes

P1500
P1000 KNOW THAT ONE
U0155
U0101
U0100
B2916
B2917
U0121
U0151
U2199
U2023
U2471
B2293
U1900

I think its all pretty much related because of a power loss of sorts...

Just so it is clear I can look up codes but wondering if others have seen same issue with so many multiple codes that seem related to power failure.
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  #2  
Old 07-24-2012, 08:23 PM
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07 Codes

Anyone with ideas? A month later and still not fixed . . .

So far all connectors have been taken apart and pins inspected, all grounds inspected & cleaned, inspected wiring harness but of course did not remove.

The IC
ABS
Trans
and all other modules lose power at approx the same time.
1st thing noticed is the power to test port so any diagnostic device loses power then the speedo starts bouncing the wrench light comes on, abs light, check engine, trans will no longer shift and the engine goes into limp mode, the A/C system shuts down.

It only does it when things are warm/hot never cold. Runs absolutely perfect until this happens. Even the fuel mileage is incredible... until things go south.

Yes, The PCM has been replaced. Unable to do a computer module software upgrade because with this model it cannot be done until it has completed a full drive cycle. It has never completed a full drive cycle. 6 of the 7 parameters only. Mostly because it takes that much longer here when the ambient temp into engine is over 100.4 deg f
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1966 F250 Deluxe Camper Special "RANGER" Special Paint
1965 F250 now gone bye bye . . Sad Face
1966 F100 powered by a 482" Dual Quad Side Oiler
1966 F100 Plain Jane AZ Grandpa Truck 352 3spd
1966 F250 Plain Jane Red/Red Long Bed 3.5L EcoBoost
1966 F600 Never Titled OR Registered Only 5388 Miles
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  #3  
Old 07-27-2012, 11:27 AM
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Sounds like a short in a wring harness somewhere.
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Old 08-30-2014, 01:23 PM
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I know this is an old thread but I too have a 2007 Ford Expedition, mine is an Eddie Bauer, 2WD 5.4L with 11000 miles on it and I am experiencing almost the exact same problems. I have mine in at a Ford dealer for 9 days now and they can't seem to find the problems. Mine is throwing codes U0001, U0100, U0121, U0155 and they've replaced the ABS module and ran up an $1100 bill and nothing.

Let me know what if anything you found out!
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Old 08-31-2014, 01:26 AM
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I doubt if this could help but ........

How about starting at the scource close to the battery. Is there a system fuse right near the battery?

Richard
2007 Navigator
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Old 08-31-2014, 01:26 AM
 
 
 
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