Gs400 not Downshifting!
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Joined: Jan 2012
Posts: 265
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From: UT
Gs400 not Downshifting!
Hey fellas, so my 98 GS400 with 180k miles on it ( still pulls like the day i got it) has this weird issue at least to me, on normal driving lets say at about 45 mph, when entering a freeway entrance or slowing down to turn at about 15 mph, i have noticed the car doesnt downshift as it should. it feels like it holds on 4th gear most of the time... ive been changing the ATF once a year with toyota type-v fluids everytime and the fluid looks cherry red...most times i have to step on the gas pedal more than i should to get it to downshift! i reset the computer often but the issue persists. all maintenance like cleaning TB , MAF, TPS, APPS have been replaced or cleaned. Any ideas??? thanks guys.
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Joined: Jan 2009
Posts: 690
Likes: 25
From: South Austin, Texas
Hey fellas, so my 98 GS400 with 180k miles on it ( still pulls like the day i got it) has this weird issue at least to me, on normal driving lets say at about 45 mph, when entering a freeway entrance or slowing down to turn at about 15 mph, i have noticed the car doesnt downshift as it should. it feels like it holds on 4th gear most of the time... ive been changing the ATF once a year with toyota type-v fluids everytime and the fluid looks cherry red...most times i have to step on the gas pedal more than i should to get it to downshift! i reset the computer often but the issue persists. all maintenance like cleaning TB , MAF, TPS, APPS have been replaced or cleaned. Any ideas??? thanks guys.
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Joined: Jan 2012
Posts: 265
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From: UT
The delay on mine is only on higher gears, it holds on the 4th gear even on low speeds specially when turning. as for codes i dont have any!!! Someone on a different thread not sure if its related mentioned that it could be from the computer learning my driving habits. i hardly rev up past 2.5k. i do floor once a while tho when a traffic light challenges me... what other symptoms would the solenoid give me besides delays on gear changes?
if its the computer learning your driving mine does the same, i used to fiddle with the tiptronic buttons all the time when i drove, and would always down shift to slow me down, and on a hill that i usually downshift on purpose, if i go down the same way in automatic it still downshifts for me.
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Joined: Jan 2012
Posts: 265
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From: UT
if its the computer learning your driving mine does the same, i used to fiddle with the tiptronic buttons all the time when i drove, and would always down shift to slow me down, and on a hill that i usually downshift on purpose, if i go down the same way in automatic it still downshifts for me.
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Joined: Jan 2009
Posts: 690
Likes: 25
From: South Austin, Texas
When I replaced my solenoid, my filter was still in good shape. I did remove it, clean it and thoroughly inspected it. If I'm not mistaken you need to remove the filter anyway to get to the solenoids.
There was a thread in the rx300 section, where the dude took a bunch of pics of a trans filter DIY.
There was a thread in the rx300 section, where the dude took a bunch of pics of a trans filter DIY.
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