Full transmission fluid change (way better technique?) (8 Viewers)

[nachocruiser]

This post is not meant to debate whether or not one should or should not do a full change but rather, whether this technique would work on our 100 series cruisers like it does in this 4runner. I used this technique on my 3rd gen 4runner 100k miles ago with great results so getting ready to do it again to it, and now my 2004 cruiser with no dipstick to fill.

This technique seems MUCH more efficient than the fill the pan, drain the pan method but wanted to see if I'm missing something perhaps unique to our cruisers.

[Electric PUMP] flush automatic transmission fluid Toyota 4Runner √ Fix it Angel​

Thank you for your input!

 

[GerLC100]

Video Link not working

Edit: forget it: video was just not showing, clicking on "watch on youtube" works

 

[nachocruiser]

Apparently people can disable the ability to watch from other websites. I clicked 'watch on youtube' and the link works.

I included the video title so one can search for it in youtube if nervous about clicking the youtube link. Hopefully that helps.

 

[Malleus]

That's the way I flush the ATF cooling system.

I'd flush the transmission separately, but you don't have to do it that way.

If you really want it clean, flush it with kerosene (the cooling system, not the transmission) until it flows clear, then flush it again with new ATF until only ATF is coming out. It won't take more than a quart of either. This is the school solution, per the transmission unit repair service manual.

 

[nachocruiser]

That's the way I flush the ATF cooling system.

I'd flush the transmission separately, but you don't have to do it that way.

If you really want it clean, flush it with kerosene (the cooling system, not the transmission) until it flows clear, then flush it again with new ATF until only ATF is coming out. It won't take more than a quart of either. This is the school solution, per the transmission unit repair service manual.

Sounds like a reasonable approach. I have no concerns to justify the extra kerosene flush step for my rig.

What is the thinking with doing the tranny separate? Just curious why?

Thanks for the input.

 

[Malleus]

Trash collects in the two low points in the cooling loop and won't get out when you flush from the transmission, IME. Doesn't hurt the transmission per se, but it does impact cooling; to what degree, I have no way of knowing. I do know that if it's less than what it is when it's clean in the cooler, it's less.

 

[Jack90210]

Here's the procedure that uses the vehicle's trans fluid pump, put together by resident guru @2001LC (link takes you to the correct post in the thread):

Scored 00LX w/557,333 Km, Emerald! No start condition. needs a ton of work. No Problem!

Differentials and transfer case gear lube. I found the rear input of front differential weeping a bit. So I add some AT-205. After driving for minimum of 5 hours. I cleaned (de grease) the area, than drove some more. Leak did not return. While work on front diff replacing side seals, I do loose...

forum.ih8mud.com

 

[nachocruiser]

That makes sense @Malleus. Thank you for that input.

Thank you @Jack90210, I was referencing that post as well. @2001LC is a legend here indeed! He mentions hooking a pump up to the return but I didn't notice that until later. Either way, I did this today and had good results. I ended up only changing 4qts. as the fluid looked really good(you can see my other post 'ATF fluid condition after 235k miles').

Cheers!