1989 Buick Park Avenue

1989 BUICK PARK AVENUE
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RON205852
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  • 1 POST
Engine Mechanical problem
1989 Buick Park Avenue 6 cyl Front Wheel Drive Automatic

Battery is dead--car will start and run while battery charger is hooked up to it--engine dies when battery charger is turned off. Is the problem primarily alternator trouble or bad battery ?
Thanks.
Nov 15, 2009 at 5:00 AM
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JDL
  • ✓Experienced Mechanic
  • 16,098 POSTS
Welcome to the forum, I'd have to check the charging system. Use a digital voltmeter across the battery posts, everything turned off, the reading for a fully charged battery is around 12.6 volts. Then take second reading, engine running, the second ready should be higher than the first, if the charging system is working.
Nov 15, 2009 at 6:44 AM
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