2003 Hyundai Sonata Battery

Tiny
SAWYERTOM
  • MEMBER
  • 2003 HYUNDAI SONATA
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 73,000 MILES
The battery light came on in my car during the day. Later that night the entire car lost power. I had the battery charged and then had a tester put on the alternator and it said the alternator was giving out power. But now the battery light is back on and car is loosing power again. What could be the problem if it is not the alternator
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Sunday, July 6th, 2008 AT 7:26 AM

3 Replies

Tiny
FORD136
  • MEMBER
Check the resistance in the pos. Battery cable. This is a common problem with hyundai's. I have replaced many of these.
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Sunday, July 6th, 2008 AT 8:12 AM
Tiny
KHLOW2008
  • EXPERT
Hi sawyertom,

When the charge light comes on, check the alternator charging again at alternator main post and battery.

It could be worn carbon brushes which is causing the intermittent charging and not charging.
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Sunday, July 6th, 2008 AT 10:40 AM
Tiny
DMCOKE
  • MEMBER
This is funny.I have a 2003 Hyundai Sonata 4 cyl Two Wheel Drive Automatic with 85,000 miles. My light came on (July 10) and I went and had the charging system tested because my battery was only two years old. The "boys" told me my alternator was fine and it was my battery it could not be charged up all the way. I took it back to the store I purchased the battery from and they tested the battery and it showed "good". Rather than argue with me, they changed out my battery since it was still under the "free replacement" warranty. I am thinking. Kewl I am good to go! NOT! Driving down the road three days later and everything starts shutting down; I make it within ONE block of the shop and it dies. I have it towed and $600 later it WAS the alternator! The $600 includes replacing the two belts, since they will have it torn apart anyway! Good luck!
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Tuesday, July 15th, 2008 AT 12:51 PM

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