In response to previous thread re: squeaky/screechy sound when starting: my belt was replaced but after few months noise began again.
So I took it back and they tightened belt saying it was loose. Next day, squeak returned. It makes the sound for about 2-3 seconds when starting up. I have not tried the WD40 suggestion and may try. But wondered it this problem could be something else?
May not be belt may be a idler arm, just a thought. If its a belt use belt dressing. Sounds more lika pully sheave worn.
Thank you, we will look into the worn "pulley sheave". That has not been mentioned as a possibility.
Search Toyota Yaris Questions
Toyota Yaris Experts