Ford Powerstroke 03-07 6.0L Discussion of 6.0 Liter Ford Powerstroke Turbo Diesels

Low Volts at start up?

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Old 10-12-2012, 08:36 PM
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Default Low Volts at start up?

Past few morning when I turn my key my gauge shows around 10-11 volts. Granted it has been getting fairly cold at night. Starts up easily no problems but my battery light will pop up for a few seconds, go out. Will do this about 2 times in a min or so. Volt gauge will stay around 11-12 until it warms up then stays right around 14v. Is this a sign I may have a possible problem with my battery or alt? or am I just paranoid?
 
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Old 10-12-2012, 10:20 PM
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Check the amp with a clamp on multimeter at the positive wire going to the alternator. At start up the amps should be in the 80's then while idling for about 10min should progressively go down and stabilize to 40's.
 
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Old 10-12-2012, 10:28 PM
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Ill check that tomorrow thanks
 
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Old 10-31-2012, 08:01 PM
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Every thing checked out but battery light came back on a day or 2 ago while driving. Got it tested at the dealership alt is going bad. Will be upgrading to a ho this friday.
 
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Old 11-01-2012, 07:12 AM
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Nice. I hate electrical stuff.
 
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Old 11-01-2012, 11:01 AM
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You and me both.
 
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Old 11-02-2012, 07:36 PM
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Well dealer wanted $299 + tax for only a 110 amp alt. Just ordered a DC Power 185 amp powder coated and shipped for $317
 
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