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Old Mar 18, 2006 | 02:18 PM
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Default Help Again Please!!

I Have A 2001 C5 And The Alternator Belt (i Isolated The Culprit) Is Squeeking Like Hell. I Changed The Belt And I Put In A Brand New Harmonic Balancer (which Seems To Wobble Just As Much As The Old One Did) And It Still Squeeks!! Can Anyone Please Help Me??
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Old Mar 18, 2006 | 04:50 PM
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Originally Posted by adamcini
I Have A 2001 C5 And The Alternator Belt (i Isolated The Culprit) Is Squeeking Like Hell. I Changed The Belt And I Put In A Brand New Harmonic Balancer (which Seems To Wobble Just As Much As The Old One Did) And It Still Squeeks!! Can Anyone Please Help Me??
Are you sure it's the alternator belt? Could it be the a/c belt? Best way to tell is to take a little bottle of water and mist it on the belt while it is chirping, if the problem goes away it's either the belt or the tension on the belt.. if it's more of a squeek/howling noise could be a bearing in one of the pulleys starting to go.

I would make sure the belt feels like it tensioned correctly. If it feels loose you may have the wrong part number belt or a failing tensioner..

Good Luck...
-=Rick
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Old Mar 18, 2006 | 06:43 PM
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Another spot to check is the idler pulley. I had a squeak so I replaced both belts, but squeak came back a short time later. After checking around I found a TSB that said to replace the idler pulley when a belt squeak is reported...I did, and the squeak has been gone for months!

HTH
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Old Mar 18, 2006 | 07:13 PM
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Default Idler

BUT there are 2 possible idlers and 2 possible tensioners so diagnose it right. I have ALMOST never seen belts make noise!

Last edited by lloyd; Mar 18, 2006 at 07:16 PM.
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