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 04-23-2024, 05:34 AM   #1
LarsoyH
 
Drives: Toyota Yaris
Join Date: Apr 2024
Location: Sweden
Posts: 2
Whining gearbox?

Hello everyone!

I have a 1.0 65hp 2005 model year yaris which has done 220000km (135.000miles) with a manual 5 speed gearbox.

Recently I have gotten a whining from what I believe is the gearbox.

It is mostly heard while in 2:nd and 3:rd gear, and during low revs (under 3000rpm).
Both during acceleration and deceleration.
In higher gears and during higher revs it is still there, but much quiter.

The whine is only heard when the car is rolling, and it is dependent on engine rpm, not the wheel speed. When I put the clutch in and rev the engine the whine is not heard, and if I shut off the engine and let the car roll in gear it whines a bit, but not nearly as much as when the engine is also running.

I have changed the auxillery belt, water pump, alternator, AC pulley bearing and both idler pulleys without any change in the whining.

I had the clutch changed before the whining started, but I drove the car for several weeks with the new clutch before the whining started, and it has gotten progressively worse since.

I have noticed a slight drop in MPG during the last few months as the whine has progressively gotten louder.

I guess this leaves it to be the gearbox?

Or could it be the timing chain even though the whine is not heard when free-reving / idling?

I have changed the gearbox oil 2 times, both with recomended 75W90 as the manual and also Toyotas 75W oil, without any change in the whine.

There were no noticable chunks or debris in the oil when I drained it, just a little bronze glitter, but not more than usually.

The car drives wonderfully and changes gear problem free, so I just cannot get my head around what is wrong with it. Is it normal that Yarises start to whine with age or is my gearbox running on overtime even though it feels as usual?

Last edited by LarsoyH; 04-23-2024 at 02:37 PM.
LarsoyH is offline   Reply With Quote
Old 04-27-2024, 05:43 PM   #2
remcafee
 
Drives: 2007 Toyota Yaris 3 door
Join Date: Sep 2018
Location: Arizona
Posts: 405
sounds like input shaft bearing to me
remcafee is online now   Reply With Quote
Old 05-08-2024, 01:22 AM   #3
LarsoyH
 
Drives: Toyota Yaris
Join Date: Apr 2024
Location: Sweden
Posts: 2
Quote:
Originally Posted by remcafee View Post
sounds like input shaft bearing to me
Ok, thanks a lot for answering.
Yeah, a gearbox related problem has been my conclusion as well during the last few weeks.

Then I can probably rule out anything engine related since the car sounds just fine with clutch engagedand when stationary.

What is usually the failure symptom of an input shaft bearing besides the noise? Will the gearbox just crap out completely one day, or will the noise get worse and worse, to the point it gets unbearable to drive the car?

Is this a normal problem with Yarises, or could the bearing have been damaged during the install of the new clutch?
LarsoyH is offline   Reply With Quote
Old 05-08-2024, 02:39 PM   #4
remcafee
 
Drives: 2007 Toyota Yaris 3 door
Join Date: Sep 2018
Location: Arizona
Posts: 405
the input shaft bearing keeps the geartrain aligned, so if its starting to wobble around, the center line will be messed up, you could eventually snap the shaft or damage gears
remcafee is online now   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
Transmission issues after 1nzfet swap Huevito General Yaris / Vitz Discussion 2 03-04-2024 12:02 AM
About to replace the transmission fluid on an automatic 2008 yaris with 172kms jessesYaris General Yaris / Vitz Discussion 6 09-23-2021 04:51 PM
Transmission oil? jamesxl DIY / Maintenance / Service 3 04-11-2016 10:18 PM
Problem help MickZEL DIY / Maintenance / Service 38 08-01-2011 02:52 PM


All times are GMT -4. The time now is 11:47 AM.




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