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V6 (1994-2004) Mustangs Technical discussions on the 3.8L and 3.9L V6 torque monsters

Alternator output.

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Old 09-11-2013, 10:53 PM
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$cactuskid
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Location: AZ
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Unhappy Alternator output.
Can some one tell me what voltage the alternator should be putting out? My charging system warning light will come for a few minutes while driving and then go off again. With the car running, and no other loads on, I am getting 13.9 volts. Seem like it should be sufficient.
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Old 09-12-2013, 01:01 AM
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NewEdgeSC
 
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There are other things in the alternator that can cause the light. It should charge at around 14.4 volts.
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