ratteling sound coming from under the hood??? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 09-22-2005, 08:03 AM   #1
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Default ratteling sound coming from under the hood???

when im sitting at idle i can hear a ratteling sound from under the hood. dont exactly know what its coming from. now i noticed that my idler pulley moves alot while its ideling and my belt seams to be a bit chewed on one side. and the guy at work was telling me about the one on his car said it sorta sounds like ball bearings in a coffee can. thats sorta like what mine sounds like but not realy. maybe just 4 or 5 bearings. but i spoke with somone else and they said it might be the bearings in the nose of the supercharger. anyone have and idea???? at least its gonna be a free fix!!
warrenty kick butt!!!!!!!!!
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Old 09-22-2005, 08:46 AM   #2
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covered under warranty.. hmmm

You described a bad pulley for sure. Bring it in and post up the results..
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Old 09-22-2005, 10:21 AM   #3
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Could be the harmonic balancer.
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Old 09-22-2005, 10:43 AM   #4
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Quote:
Originally Posted by jwikoff99
Could be the harmonic balancer.
He'* not really describing the typical symptons for that. And mentions that he knows about a bad pulley..but states it'* under warranty..

Warranty..ahhhhh
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