Dash loosing power? - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 02-17-2014, 08:20 AM Thread Starter
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Dash loosing power?

I figured this would be the best area to ask this.
My `03 EX, (mfg date OCT of 2002) just started doing something random and weird.

One day about 2 weeks ago - driving home and the factory dash gauges just shut off, along with the radio. It did this 3 times. But had not done this again until this morning.
Then - I'm sitting at a stop light, and they just cut out again.
They came back on about three seconds after I started moving.

But all the time this happens - no issues with the motor running, so I know it's not my Ts Chip. Engine Idle and drivability are still fine.

Things to note - Batteries are only 6months old, and Alternator (brand new, not reman'd) is only 2 months.

Where and what should I be looking for to trace this down?


2003 EX, 7.3L 4inch Lift, Nitto Trail Grappler's, KMC XD Spy's
220k Miles, Currently 605tq, 312hp

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post #2 of 4 Old 02-17-2014, 09:13 AM
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Have you ever looked at the OD wires under the column for chafing? It's a common problem that can be associated with the power to the cluster and, something you might check in any case

Here's a good how-2 -> https://b7445ba3-a-62cb3a1a-s-sites....attredirects=0
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post #3 of 4 Old 02-17-2014, 10:48 AM Thread Starter
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Will definitely check that out - Thank you!


2003 EX, 7.3L 4inch Lift, Nitto Trail Grappler's, KMC XD Spy's
220k Miles, Currently 605tq, 312hp

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post #4 of 4 Old 02-26-2014, 08:00 AM Thread Starter
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Well, found out what the problem was - and I guess it's something to add to the list!
Had to swap out my "NEW" alternator last night in 7* and snowing...
Diode/internal regulator failed, and was charging at just under 15v - and spiking higher.
Needless to say my PCM and Dash Gauges were not happy about it...
Got the new one on now, charging properly at 14.1v
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2003 EX, 7.3L 4inch Lift, Nitto Trail Grappler's, KMC XD Spy's
220k Miles, Currently 605tq, 312hp

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