sound on the side of the belt (my belt ball)

Selamınaleyküm206 xt 2000 model car today is hot in your island :) The temperature indicator started to come out when the air conditioner turned on at around 93 at 2 pm. What are friends? I can send videos from my private number.

Tension ball or pulley ball or powder from castor, let's see if it will make noise.

Thanks. I will return to an experience master.