weird buzzing electrical sound...

1990 PONTIAC SUNBIRD
127,000 MILES
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When I turn the car off, it starts to make a weird buzzing electrical sound like "beee". After a while ( sometimes longer than normal ) it will go off, but sounds like a dying robot. I don't know anything about cars, so if you could please help me, I'd really appreciate it!
Thanks in advance!

1990 Pontiac Sunbird LE 2 door convertible automatic 126,877 miles


It's battery was replaced in April 2011, if that helps.









Jan 14, 2012 at 2:30 AM
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PROAUTOTECH
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could it be the cooling fan? Maybe it sounds louder because it is getting a bad bearing? Let me know if you can be more descriptive, or attach a file or site where I can hear this please. Thanks!
Jan 14, 2012 at 2:40 AM
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I'll try to record the sound soon and post it here, asap.
Jan 15, 2012 at 7:39 AM
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