1997 Ford Aerostar alternator charging a fully charged batt

1997 FORD AEROSTAR
92,000 MILES • 6 CYL • 2WD • AUTOMATIC
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THE FRIDGE
  • MEMBER
  • 1 POST
the amp light comes on and the voltage indicator is over 18V, even though the battery is brand new and fully charged. It seems the alternator senses a low battery voltage and is trying to charge the battery, when it doesn't need it. The alternator output is 14-16 volts.Is the voltage regulator malfunctioning?
Aug 27, 2008 at 6:15 PM
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MHPAUTOS
  • ✓Experienced Mechanic
  • 31,937 POSTS
Hi there,

I would be having the alternator & the voltage regulator checked as the charge rate is way to high.

Mark (mhpautos)
Aug 27, 2008 at 6:17 PM
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