Six Signs a Belt Tensioner Needs to be Replaced Tensioner Noise. Listen closely to the tensioner when the engine is running. ... Improper Serpentine Belt Tracking. ... Tension Loss. ... Sticking or Notchy Movement. ... Metal-to-Metal Contact. ... Broken or Cracked Tensioner “Stops” Apr 20, 2021 Signs of a Bad Belt Tensioner | Dayco Aftermarket North America Dayco https://na.daycoaftermarket.com Dayco https://na.daycoaftermarket.com