Accessory belt tensioner/pulley

Asked by Jul 16, 2016 at 07:17 AM about the 2000 Mazda Millenia 4 Dr S Supercharged Sedan

Question type: Maintenance & Repair

The outer belt is not turning it's the accessory belt to ac and alternator the car
starts and idles rough how do I know if it's a bad tensioner or just the pulley on
the tensioner?

1 Answer


Remove belt then spin the alternator, tensioner and other related pulleys that go around belt if one make noise or does not spin easily that is the culprit. The only accessory you can not check by hand is the A.C compressor so if all other accessories turn out ok suspect the compressor.

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