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10-16-2014, 02:06 AM | #1 |
Drives: Toyota Yaris sedan 2009 Join Date: Jun 2012
Location: Saudi Arabia
Posts: 6
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A/T Jerks @ 4th Gear
Please help, I have 2009 Yaris Sedan, I have noticed that my car jerks when the gear shifts specially in 4th gear. I just had transmission fluid/filter change but jerking is still there. Thanks
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10-16-2014, 05:22 AM | #2 |
Modded Moderator
Drives: 07 Toyota Yaris, 71 Galaxie Join Date: Mar 2007
Location: Wenatchee, WA
Posts: 3,670
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I have the hatch and mine does the same thing under heavy acceleration about 30 miles ago. Had a transmission shop do it but they didn't do a complete flush as they gave me extra fluid back. I posted a thread about it but to tired to find it. Never resolved it just now I let off the pedal before 4th when going up hill and mashing it. Putting it in 3rd helps on hills.
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12-02-2014, 09:37 AM | #3 |
Drives: 2007 Yaris Sedan Join Date: Nov 2014
Location: Boston
Posts: 12
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Had exactly same issue. Flushed all fluid i changed filter. Filled back in as on instruction 2.6qt took her for test ride notice jerking between 3rd and 4th gear. Came home and check level. Was very low. So I added another qt checked again was still low. Added what I had left 0.4 so total was 4qt. Took for test ride jerking was gone. However level was still low. Then I measured drained fluid was over 1gl!!!! I had 1gl empty can from milk so it overflows. Get Toyota dealership this morning and bought another 2qt. So I ended up putting 5.4qt. Technician from Toyota said actually in some cases torque converter might be in position when all "holes" lined up and it actually flushes!!
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12-02-2014, 10:32 AM | #4 |
Drives: 2009 Base Hatch 2 Dr Auto Join Date: Dec 2008
Location: nj
Posts: 4,790
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Wow another excellent reason NOT to change the auto transmission oil!
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12-02-2014, 11:52 AM | #5 |
Drives: 2007 Yaris Sedan Join Date: Nov 2014
Location: Boston
Posts: 12
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