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Old 10-17-2007, 07:05 PM   #1 (permalink)
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I recently changed the serpentine belt on my '01 Vulcan at 107,000 miles. The old one didn't make a sound but the new one has an annoying chirp/squeal sound that goes away after driving for 15-20 miles. I replaced both the idler pulley and the tensioner pulley but the noise is still there. Any suggestions?
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Old 10-17-2007, 07:18 PM   #2 (permalink)
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Are you sure it's the belt? The cps makes a chirping sound when it starts to fail.
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Old 10-17-2007, 08:50 PM   #3 (permalink)
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Are you sure it's the belt? The cps makes a chirping sound when it starts to fail.
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I've already been through that little ordeal. Replaced it about 20,000 miles ago. No, it's definitely coming from the area of the serpentine belt.
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Old 10-17-2007, 09:09 PM   #4 (permalink)
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Get the belt tensionor looked at.
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Old 10-18-2007, 12:42 AM   #5 (permalink)
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I changed the belt because of the sound and later on the new belt continue chirping. I went to the autoshop and they just used some belt chalk to lubricate the belt and the sound was gone. However, after several days, the sound keeps coming up a little bit...The mechanic said there is not belt dressing for this kind of belt and makes it noisy..


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I recently changed the serpentine belt on my '01 Vulcan at 107,000 miles. The old one didn't make a sound but the new one has an annoying chirp/squeal sound that goes away after driving for 15-20 miles. I replaced both the idler pulley and the tensioner pulley but the noise is still there. Any suggestions?
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Old 10-18-2007, 09:09 AM   #6 (permalink)
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My suspicion is that the new belt is tighter and put more strain on the tensioner pulley. So try shooting some WD-40 or grease into it but most likely you need a new pulley.
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Old 10-18-2007, 09:09 PM   #7 (permalink)
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My suspicion is that the new belt is tighter and put more strain on the tensioner pulley. So try shooting some WD-40 or grease into it but most likely you need a new pulley.
[/b]
As I said in my post, I've replaced both the idler pulley and the pulley on the belt tensioner. The sound is like 4 or 5 quick chirps as if there is something on the belt itself causing it. I put a premium Dayco belt on it but wonder if the belt could be the problem.
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Old 10-19-2007, 12:08 PM   #8 (permalink)
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Maybe a long shot, but try turning the belt around so it runs in the other direction. At least it won't cost much to try.
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Old 10-19-2007, 05:29 PM   #9 (permalink)
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Maybe a long shot, but try turning the belt around so it runs in the other direction. At least it won't cost much to try.
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Never thought of that, I'll give it a try.
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Old 10-19-2007, 10:24 PM   #10 (permalink)
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or just try taking it off and putting it back on. maybe something's slightly off.

this or the above (turning it around) might do it.
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