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Message: <blockquote data-quote="TorqueTuning" data-source="post: 622054" data-attributes="member: 7155">nice trouble shooting... spraying on the tensioner at where?  the black plastic roller?  usually the sound is coming from the back of the belt (flat portion) that contact with the tensioner.  not the V profile that contact with inner pulley.  when u spray, it might also lub the belt.to confirm, when during cold start, spray the back of the belt at any point.  if cicak stop partying...then u know what is the problem right?btw, does the tensioner vibrate heavily when running?  usually within +/-3mm movement.  if too much, it will also cos noise to do tension not consistent.  if that is the case, usually the crank pulley is the problem where the damping is out.  the crank pulley is not a solid metal, it has rubber moulding in between.</blockquote>