Question about 1989 Buick Riviera

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The battery won't hold charge new battery - 1989 Buick Riviera

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You put a new battery, now its acting like very low power again?
Most likely the alternator is bad. Maybe not putting out enough to recharge battery. Could have been the original problem.

Can be checked with a meter. Battery at rest should show 12 - 12.9 volts more or less.
With engine running, should be showing 13.5 - 14.7 volts as alternator is pushing electric back into battery.

If you start engine and (after say 10 seconds) voltage stays same or drops, then the charger needs to be replaced. Thats the alternator. Shop around at different auto parts store. (Phone first)

Posted on May 25, 2011

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SOURCE: new battery, new alternator still won`t hold a

You must have a bad gound somewhere or faulty wiring. Your not able to get current from your new alternator over to your new battery properly.
Source could be poor or dirty conections, a corroded ground wire or a bad conector at the alternator itself.

Posted on Oct 08, 2009

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