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Squeeling 99 Suburban

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Old June 19th, 2009, 7:36 AM
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Default Squeeling 99 Suburban

My 99 suburban has started to squeel upon start up. It goes away after about 15 minutes. I've replaced the idler pulleys, alternator, belt etc. I'm thinking it's the fan clutch or the a/c but I would like some opinions before I replace either.
What are your thoughts?
Anyone else experience this?
Thanks for any help,
Mike
Old June 19th, 2009, 4:34 PM
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Is your idler pulley adjustable?
Old June 19th, 2009, 9:56 PM
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Did they ask you for the amperage of the alternator when bought the belt? There are 2 belt sizes available. If you have the large of the 2 try the smaller one. Does the noise go away when you spray water on the belt?
Old June 20th, 2009, 5:11 AM
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Originally Posted by MDTAHOE
Did they ask you for the amperage of the alternator when bought the belt? There are 2 belt sizes available. If you have the large of the 2 try the smaller one. Does the noise go away when you spray water on the belt?
I recently ran into that with a 97 Tahoe, 1 belt is about 1/2 inch longer than the other.
Old June 20th, 2009, 7:29 AM
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I don't believe the idler pulley is adjustable.
The noise "does" go away if I spray water on it.
Mudmaniac, so yours was the wrong belt?
Is my belt too short or long?
Thanks for the help on this one.

Last edited by mnewmanfla; June 20th, 2009 at 7:54 AM.
Old June 21st, 2009, 7:13 AM
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From what you have described, the belt you have would be a little to long causing it to be loose.
Old June 23rd, 2009, 12:14 PM
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Thanks MM I'll go get another belt and see what happens.
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