Harsh during downshifting
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Driver School Candidate
Joined: Jul 2017
Posts: 2
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From: Jubail
Harsh during downshifting
Hi. I have gs430 2006
a few days ago I noticed that during slow down from 3rd to 2nd there is jerk and from 2nd to 1st the jerk became very hard
i check camputers evrey things good I also change the flued and filter but still the problem exists
any suggustion ?
a few days ago I noticed that during slow down from 3rd to 2nd there is jerk and from 2nd to 1st the jerk became very hard
i check camputers evrey things good I also change the flued and filter but still the problem exists
any suggustion ?
Driver School Candidate
Joined: Jun 2017
Posts: 17
Likes: 0
From: Western Australia
Some of the solenoids fail on those 6 speed transmissions. I had an IS250 at work the other day that would pretty much lock the wheels on downshift from 2nd to 1st.
One of the solenoids was a shift solenoid and the other was the lock up solenoid. Speak to an auto trans shop, they should be able to sort it out.
One of the solenoids was a shift solenoid and the other was the lock up solenoid. Speak to an auto trans shop, they should be able to sort it out.
8th Gear
Joined: Aug 2024
Posts: 8
Likes: 14
My 2006 GS300 had the exact same symptoms. I ended up finding the root-cause within the ECM and was able to fix it by repairing various solder-joints on various SMD components. Here's a full write-up with details in case anyone else is experiencing the same issue: https://www.clublexus.com/forums/gs-...ft-solved.html
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