battery drainage

1986 OLDSMOBILE CUTLASS
46,000 MILES • 5.0L • V8 • RWD • AUTOMATIC
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HSILVA
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  • 1 POST
I have the Supreme model. My battery keeps draining after about a day. I bought a new battery and a new alternator. Same problem would occur so i tightened the belt the tightest i could but the same would happen. Some were telling me that it could be a wiring problem or possibly the starter.If you can please give me some suggestions i would really appreciate it.
Thank you
Apr 6, 2017 at 8:57 AM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
do a parasitic draw test on the battery see link on how to do it. that will tell you more. something may be staying on when it should not be.
https://www.2carpros.com/articles/car-battery-dead-overnight
Apr 6, 2017 at 10:43 AM
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