alternator charging battery problems

1992 LEXUS SC 400
183,000 MILES • V8 • RWD • AUTOMATIC
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JER MART
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  • 1 POST
i bought a new battery tested the alternator and it was good, but found a wire loose on the alternator connector. I fixed that but it still drains my battery until it is dead. all power to the car goes out and it shuts off the car it will not start or does not have any power to the car. it seems like it is not charging the battery from the alternator. what could be the problem? Please help.
Mar 15, 2017 at 10:25 PM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
auto parts can test charging system and battery with a tester for free. you may have a parasitic draw as well have it tested. then follow link to test for parasitic draw test and unplug alternator after checking other areas first.
https://www.2carpros.com/articles/car-battery-dead-overnight
Mar 16, 2017 at 7:00 AM
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