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I use that method on my 2002 GS300 and old 91 4runner, but not on the 07 GS350. Just use the drain bolt and get 3 out at a time just like your illustration shows except through the drain bolt. I ran a little over 12 quarts through and it came out nice and red. Then used procedure for top off by jumpering the 4 and 12 pins on OBD
just to clarify...one post said to jumper the 4 and 13 pins on the OBD and you're saying the 4 and 12 pins. Which is correct? Also...is this DIY procedure the same for an 09 GS??
borrowing the picture from alchemist, what is the other bolt (as shown still fastened) on the bottom of the ATF pan? the mechanic that I went to filled the ATF through that hole in that other bolt..
That is the overflow/dipstick tube that you use to top off the car. Unless he measured it precisely when refilling, he should have used the overflow tube for the top off procedure. There is a fill bolt not shown in the pic you used.
That is the overflow/dipstick tube that you use to top off the car. Unless he measured it precisely when refilling, he should have used the overflow tube for the top off procedure. There is a fill bolt not shown in the pic you used.
oh, but I am indeed referring to the bolt shown in the picture, it's to the right and about halfway down the picture (there is only 1 silver-ish bolt showing in the picture). If I'm not wrong, it is a torx screw.
yes that is the overflow/internal dipstick bolt. 6MM
ah, apologies for not understanding your initial reply. the drained amount was not measured, and about 4 quarts was pumped in through the overflow/internal dipstick bolt hole.
For those who say just leave it alone...Aisin, the maunfacturer of our transmissions still recommends changing it.
And before you say our model isnt on there the fluid is along with several other supsosedly lifetime fluids.
Supposedly our transmissions are over engineered and the so called benefit of that is that under normal circumstances its never stressed. With that, the fluid and internals can hold up longer without maintenance. I like to err on the side of caution because i dont want to have to find out that a problem with my transmission could have been prevented with a fluid change.
Completed my tranny fluid exchange this weekend, using this tutorial. Thanks again to the OP for such a great resource! A few things I found out by doing this on my 2009 RWD GS...
1) the two rear bolts that hold up the plastic tranny pan cover were different from one another. One was a 10mm and the other was a 13mm...and although they worked the same (the bolt and washer are fixed TOO the plastic panel)..one was slightly different looking and larger. I believe it's because it's made to be slightly adjustable (it had a larger hole and the bolt/washer could move a little compared to the other one).
2) The fill plug marked WS is definitely not 22mm. Mine (maybe it's just 2009's?) needed a 24mm socket to fit it correctly.
3) You have to be a contortionist to be able to place that little jumper wire into the OBD under your steering wheel, prior to the fluid level check procedure. I think I need a chiropractor now.
4)The car definitely has a smoother feel and shift quality now. Not that is was poor before...just noticeably smoother than prior to the change. This alone makes me glad I didn't wait to 100 or 120k miles like my local Lexus dealer suggests. (my car is at 75,700)
02-07-15, 10:00 PM
