The generator light glows dimly when the car is running?

1999 BUICK LESABRE
72,000 MILES • 6 CYL • FWD • AUTOMATIC
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The battery must be charging, because I drive the car day and night and have not had a dead battery yet. I do not want to replace the alternator if it is not faulty. Any suggestions?
Oct 18, 2010 at 9:50 PM
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The alternator is probably getting weak. The alternator light will glow dimly when the diodes in the alternator starts to fail.
Oct 18, 2010 at 9:52 PM