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How to Tell when an Idler or Tensioner Pulley Needs to be Replaced | Dayco Aftermarket North America
![2011 Mitsubishi Lancer. I had the Serpentine belt, tensioner, and idler pulleys replaced in March. I'm hearing a noise that sounds like a worn bearing. I checked the pulley and this is 2011 Mitsubishi Lancer. I had the Serpentine belt, tensioner, and idler pulleys replaced in March. I'm hearing a noise that sounds like a worn bearing. I checked the pulley and this is](https://external-preview.redd.it/oSNwDma1A_inzCSb7JFA_YTnEotQEXgGcxpNu3HwAqU.png?width=640&crop=smart&format=pjpg&auto=webp&s=891ab013351aa07dc65b3f5813330a160a44242b)
2011 Mitsubishi Lancer. I had the Serpentine belt, tensioner, and idler pulleys replaced in March. I'm hearing a noise that sounds like a worn bearing. I checked the pulley and this is
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