Quote:
Originally Posted by N S
2006 4.4L V8 with 109k mi
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I would recommend starting by removing the serpentine belt and spinning/checking each pulley individually by hand.
Check for binding/coarseness/sounds. Every pulley should feel tight and smooth with no play.
Also check the entire length of the ribbed side of the belt for abnormal wear/missing chunks.
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2005 X5 4.8is ____
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