03 6.0 Battery issue???????? - Ford Powerstroke Diesel Forum
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Old 02-29-2012, 12:01 PM
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03 6.0 Battery issue????????

My truck has 127000 and I went to work this morning the truck seemed fine.. when I went to start it at lunch the truck sounds like the batterys are dead.. but I tested them as they sat at 11.9 volts cold.. which I thought was pretty good.. anything will help I just need to get it running by the time I am off of work.. Thanks!!!
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Old 02-29-2012, 08:05 PM
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With your batteries reading that low you are probably drawing down below 10v at which point the FICM and PCM will not work below 10v.
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Old 02-29-2012, 08:06 PM
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Test each battery separately. And load test also.
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Old 03-01-2012, 07:46 PM
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bad battery(s)
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Old 03-02-2012, 11:53 AM
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Those are good enuff for a gasser, but not a psd. I have the onboard factory volt meter /rpm controller in my truck, i can tell my alternator or a batt. Is going bad before an idiot light comes on, koeo, they are always 13.8, 14.1 going down the road.
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Old 03-02-2012, 06:01 PM
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Agreed with load test. Free at napa. Test batteries individually and alternator. Replace with 850cca's or better. I was surprised at how fast mine turns over with new batteries.
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