1999 Hyundai Sonata Headlights blown and battery cooking

1999 HYUNDAI SONATA
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JUSTUSINSTPETE
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Electrical problem
1999 Hyundai Sonata 4 cyl Two Wheel Drive Automatic

Headlamps blown, alternator replaced, started blowing out headlamps, new alternator putting out too much voltage was replaced again, 1 week later headlights blown again, fuses are good, battery getting cooked; what is causing headlights to be blown and battery to be cooked?
Sep 26, 2010 at 10:45 AM
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KHLOW2008
  • ✓ASE Certified Mechanic
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  • ASE Certified Mechanic
Hi justusinstpete,

Symptoms indicates the alternator is overcharging causing the problem.

It could be a faulty alternator or PCM, which is linked to the charging system.
Sep 26, 2010 at 12:47 PM
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