How To Stop My Serpentine Belt From Squealing When The AC Is On?


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Anonymous answered
Make sure it is tight, and you may need to spray it with belt dressing.  Belt dressing conditions the rubber, making the belt last longer, as well as gives it a slightly sticky surface what will not slip and squeal.  Any auto parts store should carry a can of belt dressing.  I give about a 98% guarantee that this will fix the problem.  I spray all of my belts about twice a year.

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