The volt gauge normally reads 15 volts

Tiny
ANONYMOUS
  • 1997 CHEVROLET BLAZER
  • 197,000 MILES

The volt gauge normally reads 15 volts. When I run the lights & heater fan, its drops to 9 volts. I hear a whistling noise that appears to be coming from the alternator. It returns to 15 volts when I shut them off. Also, the battery seems to be slowly discharging. Could this be a problem with the alternator?

Sunday, December 2nd, 2012 AT 2:24 PM

1 Reply

Tiny
ASEMASTER6371
  • EXPERT
  • 25,554 POSTS

Yes, the alternator has failed.

Roy

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Sunday, December 2nd, 2012 AT 3:21 PM

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