Battery draining overnight?

Tiny
MICHAEL NEEDS HELP
  • MEMBER
  • 1991 CHEVROLET SILVERADO
  • 4.3L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 178,000 MILES
I recently replaced the alternator and before that the power steering pump along with plugs, plug wires, battery. I've gone through everything I can think of and still the battery (the one in it is the 3rd one since I started) is still going dead overnight. I charge it and it'll crank right up only to be dead the next day. I have put the digital multimeter on it and the battery reads 12.7(the battery was brand new) and reads 13.9 when I crank it up. I have checked the fuses and no blown there. I understand that it's probably something I did that somehow left a circuit open and drains the battery, but I am at my wits end as to what.
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Tuesday, January 24th, 2023 AT 6:11 PM

2 Replies

Tiny
MICHAEL NEEDS HELP
  • MEMBER
I found the problem with my truck battery wouldn't hold the charge. After spending several hours chasing, I thought, "well take the battery off and this is what I got".
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Wednesday, January 25th, 2023 AT 10:08 PM
Tiny
KEN L
  • ADMIN
Wow, great find! So, the battery was defective it happens, and you say three batteries in a row did this? Please check the engine to frame/body grounds (ground strap). Use 2CarPros anytime, we are here to help. Please tell a friend.
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Thursday, January 26th, 2023 AT 10:47 AM

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