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belt tension

  1. ('14-'18) 2017 - Hearing a buzzing/vibrating noise from compressor or belt with AC on?

    Air Conditioning and Ventilation
    Hi all, Started hearing a buzzing/vibrating noise right around the AC compressors connection to the accessory drive belt. There's also a noticeable "hiss" sound when you're inside the car and start the AC. I still get cold air, but am concerned about it - trying to run AC less, but it's 100...
  2. ('09-'13) 2010 - ''idler'' arm (belt tensioner) bad?

    EE20 - 2.0L Diesel
    Hi! Thanks for taking a look... I wasn't sure if the belt tensioner is the problem here, or just a rough idle. I have a bunch of lights illuminated on the dash, having those checked for codes tomorrow morning. Otherwise the car runs great. So if I need to replace the worn parts- any idea if...