Volt meter goes to 15 and stays there, then drops to 13 and stays there
My volt meter runs normal, then moves up towed
15 and stays there, then drops to 13 and stays
there. Replaced battery and alternator, any
Have the charging system checked. It should be charging no less than 13.8 DCV and no more than 14.7 DCV. This sounds like a bad voltage regulator to me.
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