Toyota Yaris Forums - Ultimate Yaris Enthusiast Site
 

 


 
Go Back   Toyota Yaris Forums - Ultimate Yaris Enthusiast Site > Technical Forums > DIY / Maintenance / Service
  The Tire Rack

Reply
 
Thread Tools Display Modes
Old 09-10-2021, 10:50 AM   #1
jessesYaris
 
Drives: 2008 Yaris
Join Date: Sep 2021
Location: Hamilton, ON
Posts: 8
How do you properly tension your serpentine belt?

Replaced mine a few months ago as the original was squealing so loud it was waking the neighbours...

Tried my damnedest to apply tension to it while tightening the bolt on the generator and it still squeals a bit from time to time when I start it up.

I assume I didn't apply enough tension?

How do you do it properly?
jessesYaris is offline   Reply With Quote
Old 09-11-2021, 08:09 AM   #2
bronsin
 
bronsin's Avatar
 
Drives: 2009 Base Hatch 2 Dr Auto
Join Date: Dec 2008
Location: nj
Posts: 4,335
It’s a little tricky as there’s no tension adjuster. I just keep trying until it doesn’t squeal. But there’s a caveat. Put too much tension on it and it might damage the water pump. That’s one thing Yaris Suffers from one and 100 have bad water pump prematurely.

So maybe a little squeal is OK?
__________________
Synthetic Oil: Its All In Your Head
bronsin is offline   Reply With Quote
Old 09-11-2021, 08:10 AM   #3
bronsin
 
bronsin's Avatar
 
Drives: 2009 Base Hatch 2 Dr Auto
Join Date: Dec 2008
Location: nj
Posts: 4,335
One thing I forgot to mention. I would only use a dealer supplied belt. They might be expensive but they last a long time.
__________________
Synthetic Oil: Its All In Your Head
bronsin is offline   Reply With Quote
Old 09-11-2021, 08:22 AM   #4
bronsin
 
bronsin's Avatar
 
Drives: 2009 Base Hatch 2 Dr Auto
Join Date: Dec 2008
Location: nj
Posts: 4,335
Careful when tightening and loosening the alternator bolt. A camshaft sensor is near one of them. It’s plastic and easily damaged!
__________________
Synthetic Oil: Its All In Your Head
bronsin is offline   Reply With Quote
Old 09-11-2021, 09:56 AM   #5
jessesYaris
 
Drives: 2008 Yaris
Join Date: Sep 2021
Location: Hamilton, ON
Posts: 8
Thanks again, Bronsin!

I think I'll leave it as is then as there is hardly any squeal at all now.
jessesYaris is offline   Reply With Quote
Old 09-13-2021, 07:36 AM   #6
Leegamer
 
Leegamer's Avatar
 
Drives: No longer own a yaris :(
Join Date: Mar 2012
Location: Ashland, VA
Posts: 675
I usually adjusted mine during the spring and fall. Otherwise it seems like the change in temperature and/or humidity would cause it to start squealing. Not sure if it was making the belt stretch/shrink/etc...but the first time I did it my bolts were almost impossible to break free.
__________________
I'm a hermit named Lee
Leegamer is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Serpentine belt tension questions Rob888 DIY / Maintenance / Service 8 09-13-2020 08:51 PM
Determining proper tension for new serpentine belt RMcG DIY / Maintenance / Service 8 06-06-2018 12:31 AM
Which serpentine belt? courtartanis DIY / Maintenance / Service 0 11-30-2017 10:32 AM
Squeal from Engine after replacing Water Pump and Serpentine Belt vidfan DIY / Maintenance / Service 7 06-24-2014 10:41 AM
Lost Serpentine Belt NickNickNick DIY / Maintenance / Service 33 07-31-2011 12:28 PM


All times are GMT -4. The time now is 12:15 PM.




YarisWorld
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.