Question about 1993 Buick Century

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1993 Buick century Battery dies after sitting for a day or two. Replaced Battery, Alternator, and positive battery cable like a fool. Same problem. Disconnected positive terminal and connected voltmeter between positive terminal and positive cable - 12.31 volt draw. Nothing is on - not even the hood light. Pulled all fuses, fuseable links and relays and still had 12.31 volt draw. Any ideas? Thanks

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From what I get,you have a battery (12.31 Voltage Drop) all the time
No way all the fusable links are out of system
That is kind of extreme to cut them

Go to 20AMP first, and put the meter back in series,as your were.
If you get anything over 30 Mili Amp ,and it doesn't time out after 10 min,you found the issue.
The fuses out ,should have killed that.

Posted on Nov 07, 2010

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The short is probably in the alternator. Remove the alternator and have it tested at the parts store or test it yourself. Blown diode will allow a direct discharge of the battery.
1993 Buick century Battery dies after sitting for - jturcotte_88.gif

Posted on Nov 07, 2010

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