6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van

Running Voltage

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Old

Aug 17, 2010 | 11:06 PM

#1

caere

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Senior User

Joined: Nov 2007

Posts: 400

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From: Canada

Running Voltage

So I just got Auto Enginuity. Did some simple monitoring until I have more time to play with it. I did notice my battery voltage and FICM voltage were both 13.5V when running. Shouldn't it be higher than that? I just replaced both batteries a couple weeks ago. Does that mean my alternator is do for replacement? Any thoughts?

Any other test I should do with the software before I add a new turbo, injectors etc.?

Thanks

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Old

Aug 18, 2010 | 06:22 AM

#2

foul1

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Joined: May 2009

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I just got a sct livewire mine runs at 11.5 to 12 all the time? Im so confused.

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Old

Aug 18, 2010 | 10:04 AM

#3

dchamberlain

Lead Driver

Joined: Sep 2007

Posts: 8,180

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From: Scio, OR

Club FTE Silver Member

13.2 to 14.1 is the range I've read is normal. The SM says 13 to 15.

Mine runs right around 13.2 to 13.5

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Old

Aug 18, 2010 | 12:45 PM

#4

PSD2005

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Joined: Aug 2010

Posts: 202

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From: FLORIDA

13.7 on mine

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Old

Aug 18, 2010 | 12:59 PM

#5

foul1

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Joined: May 2009

Posts: 357

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OK upon futher review is 10.5 after it been drivin and then upon restarting. It then returns to 13.5 after a few min and stays there.

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