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Old 04-03-2012, 07:12 PM
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Question charging system

i have a 2001 7.3 and am having battery problems. i know the one battery is shot it did not pass the load test i put on it. but what is bothering me is . i had it running and pulled off the battery cables and the truck dies. not sure if this is normal? i know on gas it will stay running. but the 7.3 shuts down when you un due the battery's. makes me thing im having a charging problem. thanks T
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Old 04-05-2012, 07:22 AM
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well any body know? its been a few days on this one,
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Old 04-05-2012, 09:38 AM
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7.3 needs a constant supply of juice to keep the injectors firing via IDM. IIRC our stock alternators don't put out a whole lot at idle....so yes, sounds normal to me.
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Old 04-05-2012, 10:23 AM
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If you think there's an issue, check the alternator.
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Old 04-05-2012, 12:33 PM
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thanks, i thought that might be normal but was not sure.
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Old 04-05-2012, 12:41 PM
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it is not normal. just ran out an tested it on my truck. it stays running. test your alternator.
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