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#1
01-08-2008, 08:05 PM
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Buzzing vibration
I have developed some kind of medium pitched humming vibration in my motor area. I can still feel it when stopped so that eliminates tires or hubs. I thought it was the idler pulley so I replaced that but I can still feel it.
Could it be the harmonic balancer? Seems like it is similar to when the water pump started going South a couple of years ago.
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97 Grand Prix GT 360,000 miles as of 02-01-09 391 000 miles as of 11-17-11 400,000 miles as of 3-15-13 01 Duramax/Allison 07 G6 convertible Last edited by wlkjr; 01-08-2008 at 08:39 PM. 
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#2
01-09-2008, 12:31 AM
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Re: Buzzing vibration
best thing to do is simply remove the serpentine belt and run the motor for just a coupl minutes to see if the noise goes away with the belt off. If it does shut the car off and spin each pulley by hand and feel for roughness.
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-2000 Grand Prix GTP 170,000mi (daily driver) -2000 Olds Alero 100,000mi (soon to be DD with gas at $3.45/gal) -1997 Chev K1500 4x4 115,000mi (Natalie's truck [nans_grandprix]) AF "2.0" Community Guidelines Conservative Victory 2012!!! "I'll Keep my Guns, Freedom, and Money. You can Keep the Change!" ----->>>>> Did You Know? <<<<<-----
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