Question about 2000 Jeep Wrangler
You shoulld expect more than 12.8 volts from the alternator up to nearly 14 volts when charging a low battery. The battery can only show the amount of voltage your alternator is sending to it after being used for a while. I would suggest that you have the battery tested & recharged completely, your voltage will be above 12 volts and if it returns to below that , you will know your alternator is not charging. Also, if you test the output of the alternator and see it is below 12 volts after the battery is fully charged at 12+ volts you will have confimed the problem also.
Posted on Jan 31, 2010
Testimonial: "Quick response and right on the money -alternator passed a test at the local autoparts store, the battery didn't. Thanks"
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Posted on Jan 02, 2017
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