drive belt noise

[dripper]

1997 Nissan pickup change alternator about two month ago. and alternator belt. a couple of week ago only when weather temperature change belt squeal as long as the weather hot no sound. say a front come thru or it start raining the belt start squealing. I was thinking that it could be fan clutch any idea.

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[Richard Kirshy]

Had the same issue on my 3.3L Nissan Xterra.
Suggest you try to re-tension the belt

[Rob]

could be a pully that is getting moister on it causing noises…. personlly I would check the belt and see how it looks and check the techiner like night was saying… while it is off try spinning the pullys and see if you hear any noises… sometime the only was to fix it is throw a new belt at it and try that… you can also try uselling a spethicope might tell you where its coming from mor might not

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