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Tinking Sound From Belt under the hood

Tiny
BHINCKLE
  • MEMBER
  • 2006 MERCURY MARINER
  • 6 CYL
  • AUTOMATIC
  • 141,000 MILES
I started the car up and immediately heard a tinking noise. Lifted up the hood and you can tell just by the npise its coming from belt. I don't know if something broke or if the belt needs to bbe replaced or just greased up. It looks fine n not thin but I'm also not good at cars Lol. If you can help it'd be greatly appreciated. Thank you
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Saturday, January 11th, 2014 AT 12:57 PM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 33,871 POSTS
Noises from serpentine belts can be caused by them being loose or having insufficient tension from spring-loaded tensioner pulleys, but most commonly it's due to a pulley being turned or tipped, usually from a bad bearing. The noise is caused by the belt sliding across a pulley as it goes around it.

Do not put any kind of belt dressing, or "grease" on a serpentine belt. Dirt will stick to it and cause a lot more noise. The only fix for that is to discard the belt, scrub all of the pulleys with soap and water or an engine degreaser, then install a new belt.
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Saturday, January 11th, 2014 AT 3:47 PM

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