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The most likely culprit is the serpentine belt. Check the belt tensioner first, making sure it retracts and extends with smooth pressure. Make sure the weather shields are in place under the belt, keeping rain and snow out. If all this is okay, then replace the belt. One way to check before the repair is to spray the belt with brake-kleen or something similar that will evaporate. The noise will change significantly or go away when sprayed. Nothing in a can will fix this noise permanently!

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16y ago

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