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11-02-2016, 04:39 PM | #1 |
Drives: 2012 Polar White 3-dr 5-spd Join Date: Apr 2016
Location: Quebec, Canada
Posts: 10
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Transmission clunky when getting in 3rd gear
For a couple of months I've been experiencing a clunk (like it's hitting something) especially when shifting from 2nd to 3rd gear. This started when I changed trans oil for Redline Mt-90. At first, it didn't do it when downshifting but it's doing it. It's now doing from time to time when going in 2nd.
And yes, I lubed the linkage under the hood. Any idea what could it be ? Very strange that Mt-90 worsened my shifting feeling. Thanks. |
11-02-2016, 05:03 PM | #2 |
Drives: 2009 Base Hatch 2 Dr Auto Join Date: Dec 2008
Location: nj
Posts: 4,790
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Try bleeding the clutch. If air gets in there it won't shift properly.
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Synthetic Oil: Its All In Your Head |
11-02-2016, 08:24 PM | #3 | |
Drives: 2012 Polar White 3-dr 5-spd Join Date: Apr 2016
Location: Quebec, Canada
Posts: 10
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Quote:
And how you do it ? |
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11-02-2016, 08:47 PM | #4 |
Drives: 2009 Base Hatch 2 Dr Auto Join Date: Dec 2008
Location: nj
Posts: 4,790
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Get a friend and have them hold the clutch pedal to the floor. You loosen the bleeder bolt and tighten it after the fluid stops. Then tell friend to let the pedal up. If nothing but fluid comes out it's not the clutch. If there's air or it splutters, repeat until you get a solid stream of fluid. You found the problem.
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Synthetic Oil: Its All In Your Head |
11-02-2016, 10:02 PM | #5 | |
Drives: 2009 5-door, 5-speed Join Date: Sep 2011
Location: White Rock BC
Posts: 687
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Quote:
It can be a sign that your Syncros are a bit worn as well, but step one is to get the correct fluid in there. Cheers. |
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11-02-2016, 10:18 PM | #6 |
Drives: '08 2zr swapped Vios M/T Join Date: Oct 2012
Location: Caledonia Ont.
Posts: 2,938
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I have ran mt-90 in my yaris for the past 3 years for better cold weather shifting. Hasn't caused me any clumps other than the odd reverse shift grind which happened much more previously.
Not discounting what CoryM said as that is true but just shedding light on the other side of it. Wouldn't hurt to go back to stick fluid and compare shift feel
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11-03-2016, 12:04 AM | #7 |
1NZ-6spd
Drives: '05 6-Spd Vitz RS Join Date: Oct 2008
Location: Oshawa, Ontario, Canada
Posts: 2,967
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GL4 is what you want. I've experienced the same issues with GL5 fluids. I've used Amsoil, Castrol and cheap Motomaster 75-90 synthetic fluids. I'm now using Royal Purple 75-90 GL4 full synthetic. It fixed all rough shifting problems I've had over the year of using other fluids.
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11-03-2016, 09:37 AM | #8 | |
Drives: 2012 Polar White 3-dr 5-spd Join Date: Apr 2016
Location: Quebec, Canada
Posts: 10
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Quote:
Last edited by frankronne; 11-04-2016 at 02:38 PM. |
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11-03-2016, 10:33 AM | #9 |
1NZ-6spd
Drives: '05 6-Spd Vitz RS Join Date: Oct 2008
Location: Oshawa, Ontario, Canada
Posts: 2,967
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That's strange. How long did you go with the old oil before changing it out?
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11-03-2016, 11:17 PM | #10 | |
Drives: 2009 5-door, 5-speed Join Date: Sep 2011
Location: White Rock BC
Posts: 687
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Quote:
After going back to regular oil, shifts were as good as before. Syncros are happy and working well. Cheers. |
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11-04-2016, 08:48 AM | #11 |
Drives: 2007 2-door hatchback Join Date: Jul 2016
Location: USAnotCA
Posts: 750
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What is your "regular" manual transmission oil?
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11-04-2016, 02:37 PM | #12 | |
Drives: 2012 Polar White 3-dr 5-spd Join Date: Apr 2016
Location: Quebec, Canada
Posts: 10
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Quote:
I complained at my dealer about it. They went with me on a test drive (with me driving, saying that I know the feeling and not them). I explained my problem to the mechanic and he was like it's normal, when he didn't even try it... |
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11-04-2016, 10:33 PM | #13 |
Drives: 2009 5-door, 5-speed Join Date: Sep 2011
Location: White Rock BC
Posts: 687
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Non-synthetic 75w90. Toyota says GL5 or GL4 is fine, but GL4 is probably the better bet (less slippery). I don't remember what brand I used but likely Quaker State. Interestingly I called a Toyota dealer to buy some OE fluid and they said they just use bulk 80w90...... .
Let's be very clear: The Yaris gearbox is always going to be a little clunky/noisy. It's just not a very smooth box. It is, however, a very durable unit and works fine for the application with the correct oil. This is one of those cases where you should listen to the engineers. The only reason to consider different M/T oil is really if you are regularly operating outside of the temperature range they designed the car for. And yes, some of you are probably at the far end of that range in Winter. Yuck. Cheers. |
11-04-2016, 10:35 PM | #14 |
Drives: '08 2zr swapped Vios M/T Join Date: Oct 2012
Location: Caledonia Ont.
Posts: 2,938
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^well said
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