Squealing Belt when starting engine

[holycrail]

Hi Guys & Girls,

New to this forum but wanted to see if anyone has similar issues to the one i've experienced.

For about half a year now there has been this intermittent squealing noise upon starting the engine of my 07 E15 Auris. It's worse when cold but often happens when warm too and if i turn off the ignition and restart the engine within a second or two of turning the key then the noise immidiately dissapears. I'll attach a video as soon as i can to helpå diagnose thge problem. I cant imagine i'm the only person to have experienced this issue. Has anybody identified the problem before and knows what needs fixing?

[Stivino]

The noise you are describing usually indicates a loose or worn ancillary drive belt.

[furtula]

Pretty normal, usually if you rev the car a bit, the sound goes away. You should change your belt. On auris it's pretty easy, so you can do it yourself.

There is a tightening screw on the alternator, use it to release tension and take the old one out, put new one in, and adjust until tight.

[holycrail]

Cheers for the suggestions. Attached the video now... https://youtu.be/Kn6mPaWg9Ns

[holycrail]

23 minutes ago, furtula said:

Pretty normal, usually if you rev the car a bit, the sound goes away. You should change your belt. On auris it's pretty easy, so you can do it yourself.

There is a tightening screw on the alternator, use it to release tension and take the old one out, put new one in, and adjust until tight.

Any video or photo tutorials around?

[furtula]

Yes, sound like auxiliary belt squeal, and Auris has only one, so i doubt it's anything else.

I havent asked which engine before i wrote, but judging from the dash its gasoline, so i presume 1.6, so the instructions should be good.

Here's a nice instruction manual for 1ZR-FE engine (1.6 Auris 2007 gasoline), so i hope you appreciate the effort put into translating this

REMOVAL:

https://translate.google.com/translate?hl=&sl=ru&tl=en&u=https%3A%2F%2Fcorolla-club.ru%2Fdoc2%2Frm04f1ru%2Frepair2%2Fhtml%2Fframe_rm0000027io004x.html

INSTALLATION:

https://translate.google.com/translate?sl=ru&tl=en&u=https%3A%2F%2Fcorolla-club.ru%2Fdoc2%2Frm04f1ru%2Frepair2%2Fhtml%2Fframe_rm0000027im004x.html

[holycrail]

15 minutes ago, furtula said:

Yes, sound like auxiliary belt squeal, and Auris has only one, so i doubt it's anything else.

I havent asked which engine before i wrote, but judging from the dash its gasoline, so i presume 1.6, so the instructions should be good.

Here's a nice instruction manual for 1ZR-FE engine (1.6 Auris 2007 gasoline), so i hope you appreciate the effort put into translating this

REMOVAL:

https://translate.google.com/translate?hl=&sl=ru&tl=en&u=https%3A%2F%2Fcorolla-club.ru%2Fdoc2%2Frm04f1ru%2Frepair2%2Fhtml%2Fframe_rm0000027io004x.html

INSTALLATION:

https://translate.google.com/translate?sl=ru&tl=en&u=https%3A%2F%2Fcorolla-club.ru%2Fdoc2%2Frm04f1ru%2Frepair2%2Fhtml%2Fframe_rm0000027im004x.html

Thanks for your help. I replace the belt and provide an update 🙂

[Stivino]

Before you replace it, try tightening it.