Alternator on the Buick going kaputz? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 02-08-2004, 06:36 PM   #1
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Default Alternator on the Buick going kaputz?

OK a 3800 question but not a Bonneville one But humor me

I am getting a 'buzzing' sound from the alternator upon startup of the engine. Almost sounds like the groaning of a power steering pump from the inside of the car.

The alternator only does it when cold. After about a half mile of driving the noise stops and runs without noise. It varies with RPM. It'* been charging fine and continues to charge fine....

I thought it might be a bearing but doesn't a bearing squeek? Strange indeed....

Am I going to be *.O.L. on the side of the road soon?

Thanks.....

--Chris
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Old 02-08-2004, 06:46 PM   #2
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I would guess... yes. Buy a spare and have tools with you.
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Old 02-08-2004, 06:56 PM   #3
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Why not just change it NOW to avoid any inconvenience later on It will most likely go bad on the road and not in your driveway.
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Old 02-08-2004, 11:09 PM   #4
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got a stethescope? Or a screwdriver? I'd check that rear bearing. Do you know how old the battery and alt are?
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Old 02-09-2004, 09:55 AM   #5
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Thanks! Yup, I have a 'scope and can check that out. The battery is about a year old and the alternator....well I have no idea how old that it I can be pretty sure its not the original since this beast has 215k on it! I am getting rid of the car in a month (donating it for a tax write off, the roof leaks) so I just hope it can survive a months worth of driving.

Where exactly should I be putting the scope on the alternator? In the back?

Can bearings freeze up on you? That would really suck going down the road
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