Yaris 2011 Squeal or Screech at Startup

[ern-diz]

I'm on a work computer and got a funny prompt after downloading your sound file, so couldn't listen, but based on your description a couple things come to mind. First, does this video shed any light on what you're experiencing?:

https://www.youtube.com/watch?v=HRrVMtyIqIY

If not, then I posted about a similar issue (based on your description) with a YouTube link of my car doing it here:

http://www.yarisworld.com/forums/showthread.php?t=55661

There are also a couple other threads about this type of behavior on the forum. None that I've seen have posted a resolution.

Now that the weather is warm, mine hasn't been doing it, but it was doing it frequently during the colder months. My mechanic speculated that it was the starter, but couldn't actually get it to make the sound while it was in his shop, so he couldn't fix it. His thought, and others on the forum had the same idea, that the starter was sticking in the on position when very cold. Interestingly, I am at about the same mileage as you are.

Hope you get to the bottom of it and if you do, please share the fix.

[xqophx]

Originally Posted by ern-diz

First, does this video shed any light on what you're experiencing?:

https://www.youtube.com/watch?v=HRrVMtyIqIY

That is definitely the noise! Mine doesn't last that long yet, fortunately. I have an appointment at Sears tomorrow and I will be asking them to replace whatever belt they used with a higher quality - a Gates - based on that recommendation above, as well as tighten it.

Going forward, I will "slowly" start the car, like he does in this video. I'll update after my appointment and a couple of days of seeing how the changes go.

Thank you all so much for your input!