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 10-22-2014, 05:26 PM   #1
alex22808
 
Drives: 04 3dr Yaris
Join Date: Oct 2014
Location: United Kingdom
Posts: 7
Intermitent Clutch (i think) Squeal

Hi all.

I am a complete novice with cars, my 04 yaris being my first one so please excuse the vagueness of my description.

I am currently having a strange issue. 99% of the time the car runs fine, but every now and then it produces a horrifying squeal/whine. I thought it was the clutch at first so went and had that looked at a mechanic who then replaced the worn parts (again, sorry for the vagueness).

However, this didnt fix the problem. it still has the occasional squeal. What i find odd about it is that it does not seem linked to anything i do i.e. it will squeal when in neutral as well as when in gear and it will squeal whether i depress the clutch or not. It will also squeal even after i pull off and go up the gears. The squeal eventually stops, but it usually lasts a good 5 minutes or so. It also tends to happen after the car has been left out in the cold/damp.

I am sorry this is so vague. Any help would be much appreciated. If there is anything else that i omitted that would be useful to know, just ask.

Many thanks
alex22808 is offline   Reply With Quote
Old 10-22-2014, 07:00 PM   #2
andulong
 
andulong's Avatar
 
Drives: 2008 Hatch Red
Join Date: Apr 2012
Location: San Diego, CA
Posts: 66
Often a squeal is caused by a worn or loose belt.
andulong is offline   Reply With Quote
Old 10-22-2014, 11:57 PM   #3
SilverBack
Joey
 
SilverBack's Avatar
 
Drives: '14 Scion xD 5-speed
Join Date: Oct 2008
Location: El Monte, Ca
Posts: 3,529
Send a message via AIM to SilverBack
^This. Also, a loose pulley can wear down the belt faster.
__________________
Formerly owned Met-Met. '07 Yaris LB 5-speed.

A forum post should be like a skirt: Long enough to cover the subject but short enough to keep things interesting.

"I don't have an anger problem. I have an idiot problem." -Hank Hill
SilverBack is offline   Reply With Quote
Old 10-23-2014, 08:07 AM   #4
alex22808
 
Drives: 04 3dr Yaris
Join Date: Oct 2014
Location: United Kingdom
Posts: 7
How serious a problem is it i.e do i need to go to the garage straight away or wait till a service? also, how easy problem to remedy is it if it is the belt (bearing in my mind this is my first car so i am a novice at diy on cars)?

thanks for the replies!
alex22808 is offline   Reply With Quote
Old 10-23-2014, 09:05 AM   #5
tmontague
 
tmontague's Avatar
 
Drives: '08 2zr swapped Vios M/T
Join Date: Oct 2012
Location: Caledonia Ont.
Posts: 2,938
very likely it's just your serpentine belt. It's to the left of your engine when facing the engine bay. Take a look at the ribbed side and see if it cracked. Could be worn out or loose. It's cheap to get replaced at a mechanic but don't install it too tight or it can prematurely wear out your pulleys

You can do it yourself as the belt will only run your $15-$25 all you have to do it loosen the alternator and get your hands/arms a little dirty
tmontague is offline   Reply With Quote
Old 10-23-2014, 10:34 AM   #6
alex22808
 
Drives: 04 3dr Yaris
Join Date: Oct 2014
Location: United Kingdom
Posts: 7
Just took a look at the belt. It seems fine. I checked the grooved side and it fine ie the grooves were all there. it also felt pretty tight, so it seems unlikely that the squeal is caused by it being loose.

Is there any other options? i am no expert, but the belt seems fine to me. Again, thanks for the replies!
alex22808 is offline   Reply With Quote
Old 10-23-2014, 10:41 AM   #7
CTScott
ULTIMATE
 
CTScott's Avatar
 
Drives: 09 5dr LB, 2x 08 3dr LB
Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
Quote:
Originally Posted by alex22808 View Post
Just took a look at the belt. It seems fine. I checked the grooved side and it fine ie the grooves were all there. it also felt pretty tight, so it seems unlikely that the squeal is caused by it being loose.

Is there any other options? i am no expert, but the belt seems fine to me. Again, thanks for the replies!
The happening most when it is cold/damp really points to the belt. The Yaris is tricky with belt tightening because it does not have a screw tension. Rather you have to pry the alternator away from the block and then tighten the bolt, so there is far less precision to tightening it than with a screw tensioner. Some brands of belts are better than others when it comes to squeaking. I have found that Dayco belts are the worst with the Yaris, where short of overtensioning the belt you can't make them stop squeaking (and that's when they are only a month or two old).
__________________
CTScott is offline   Reply With Quote
Old 10-23-2014, 10:46 AM   #8
alex22808
 
Drives: 04 3dr Yaris
Join Date: Oct 2014
Location: United Kingdom
Posts: 7
Quote:
Originally Posted by CTScott View Post
The happening most when it is cold/damp really points to the belt. The Yaris is tricky with belt tightening because it does not have a screw tension. Rather you have to pry the alternator away from the block and then tighten the bolt, so there is far less precision to tightening it than with a screw tensioner. Some brands of belts are better than others when it comes to squeaking. I have found that Dayco belts are the worst with the Yaris, where short of overtensioning the belt you can't make them stop squeaking (and that's when they are only a month or two old).
In terms of checking the belt, what should i be looking for beyond the ribs being worn?

Also, there seems to be no tensioning device on the belt, unless it is on the underside. The belt just seems to fit round the 3 wheels and is tight just like that.
alex22808 is offline   Reply With Quote
Old 10-23-2014, 12:06 PM   #9
CTScott
ULTIMATE
 
CTScott's Avatar
 
Drives: 09 5dr LB, 2x 08 3dr LB
Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
Quote:
Originally Posted by alex22808 View Post
In terms of checking the belt, what should i be looking for beyond the ribs being worn?

Also, there seems to be no tensioning device on the belt, unless it is on the underside. The belt just seems to fit round the 3 wheels and is tight just like that.
Look at the ribs for signs of them being shiny (called glazing of a belt). Also push against the long stretch of the belt. It should only deflect about 1 cm in the center of that stretch when pushing on it with one finger.

For tensioning, that is what I was saying above. The Yaris does not have a mechanism for easily doing so. You have to loosen the alternator bolts and then apply pressure against the alternator to move it away from the engine. While doing so you check the tension of the belt and once the deflection is OK, you tighten the alternator bolts while holding pressure on the alternator. When doing this a wooden hammer handle or something of that nature is what you use for leverage and you have to be careful not to crunch the oil control valve, which is mounted close to the alternator.
__________________
CTScott is offline   Reply With Quote
Old 10-23-2014, 12:33 PM   #10
tmontague
 
tmontague's Avatar
 
Drives: '08 2zr swapped Vios M/T
Join Date: Oct 2012
Location: Caledonia Ont.
Posts: 2,938
I have used a long metal screwdriver, although wooden is ideal. Below is a picture of where the oil control valve is that you want to avoid. The first time I re installed a new belt I think I over tightened it as I wans't aware this was possible and cranked it. The belt didn't deflect much when I pushed on it so I loosened it due to fear of premature worn pulleys. A deflection os 1 cm is a good point to go with, I think there is a recommended amount in the manual somewhere.

Have you spilled anything on the belt recently? When the noise is happening open up the hood and see where it's coming from. If it's the belt it should e obvious. It is possible that the belt has worn a little and is now loose and just needs to be re tightened. If after being re tightened it squeals again then just install a new belt.



The above isn't the 1NZ-FE engine but its close and it has the sensor in the same position
tmontague is offline   Reply With Quote
Old 10-23-2014, 01:32 PM   #11
alex22808
 
Drives: 04 3dr Yaris
Join Date: Oct 2014
Location: United Kingdom
Posts: 7
Cheers for the replies everyone. Its too dark out to have a look at it now, but will have a look tomorrow and report back!
alex22808 is offline   Reply With Quote
Old 10-23-2014, 04:15 PM   #12
IllusionX
It's the illusion you see
 
Drives: 07 Yaris Sedan Aero
Join Date: Oct 2006
Location: Brossard, QC
Posts: 3,888
Your 2004 probably has an extra pulley for the hydrolic powersteering..
__________________
IllusionX is offline   Reply With Quote
Old 10-23-2014, 07:04 PM   #13
CTScott
ULTIMATE
 
CTScott's Avatar
 
Drives: 09 5dr LB, 2x 08 3dr LB
Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
Quote:
Originally Posted by IllusionX View Post
Your 2004 probably has an extra pulley for the hydrolic powersteering..
The French made MK1 Yaris actually have electric power steering, so he won't have the extra belt and double crank pulley, like our first gen has.
__________________
CTScott 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
Getting Rid of the infamous Clutch "Shudder" tmontague DIY / Maintenance / Service 14 07-08-2023 01:56 PM
Clutch Maintenance fnkngrv DIY / Maintenance / Service 12 03-03-2017 10:42 AM
Unique Smell from Air Going Through AC Blower EddieCabael DIY / Maintenance / Service 30 01-19-2015 09:08 PM
need help on my 2008 yaris compress clutch susucosp DIY / Maintenance / Service 0 05-15-2014 03:48 PM
Having clutch issues ? hystria DIY / Maintenance / Service 10 08-22-2007 11:34 AM


All times are GMT -4. The time now is 05:36 PM.




YarisWorld
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.