transmission fluid change

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If they exist, would someone mind posting the FSM procedure from the book on how to do a full transmission fluid exchange for the 4spd? If it doesn't exist, which posts in this thread can I bring to a trained monkey with a fluid exchange machine and say "follow this to the letter" to get it done right?
 
ramangain said:
If they exist, would someone mind posting the FSM procedure from the book on how to do a full transmission fluid exchange for the 4spd? If it doesn't exist, which posts in this thread can I bring to a trained monkey with a fluid exchange machine and say "follow this to the letter" to get it done right?
Click to expand...

For all Transmissions,

Go to

https://lc100e.github.io/manual/

Then use index panel on Left Hand Side of the opening page and follow these tabs:

Go to

Repair Manual

Then within this tab, go to

DIAGNOSTICS

Then within this tab, go to

AUTOMATIC TRANSMISSION (A343F)

OR

AUTOMATIC TRANSMISSION (A442F)

OR

AUTOMATIC TRANSMISSION (A750F for 1HD-FTE)

OR

AUTOMATIC TRANSMISSION (A750F for 2UZ-Fe)

Then within the tab for the relevant transmission, go to

PRECHECK

Then within this tab:

Scroll through this section until you find the relevant instructions headed 10. BASIC INSPECTION (or similar) which includes instructions for replacing ATF -- for example at PDF page 11 (FSM DI-90) for A442F.

For those with 5-speed A750F, also read

New Car Features (2003.8 - ) at the top of the index panel for specific instructions concerning fill method and fluid type for A750F.

Then find Monkey Trainer :cheers:
 
Much appreciated. Should one of my takeaways is that there is no Mr. T authorized procedure for fluid exchange using an exchange machine? If my local dealership or favorite indy shop has a fluid exchange machine, should I allow them to use it?
 
All assume you've a 3spd w/OD which many call a 4spd which is in the 98-02 100 series. Those have a dipstick for transmission fluid and are easy.

Look under transmission.
forum.ih8mud.com

Master thread: Buying, PM & Advance Maintenance of 100 & 200 series.

I've been a Land Cruiser fan since 2001. I first found ih8mud in 2005. I've learned and still learning everyday from the many contributors of mud. Thank you all! First thing I learned is 100 series are tanks, that just keep going. But even tanks need maintaining. This thread is dedicated to...
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I followed 2001LC's directions and it went flawlessly. A couple things to note which may help others ....

1. The ID of the hose to connect to the trans cooler output nipple is 3/8"
2. I removed the airbox to get the trans cooler output hose off. It make my life much, much easier.

I think my fluid was OK for quite some more time, but I'm about to tow from east to west coast. I wanted to ensure the tranny is as happy as possible before starting.
 
ramangain said:
I followed 2001LC's directions and it went flawlessly. A couple things to note which may help others ....

1. The ID of the hose to connect to the trans cooler output nipple is 3/8"
2. I removed the airbox to get the trans cooler output hose off. It make my life much, much easier.

I think my fluid was OK for quite some more time, but I'm about to tow from east to west coast. I wanted to ensure the tranny is as happy as possible before starting.
Click to expand...
3/8" cool! THX

No need to pull airbox, when disconnecting return hose from next to radiator.

Tip: Whenever removing a hose. Grab hose where clamp was, lightly, with channel locks. Rock gently back and forth, until hose twist freely. Push hose/line off nipple/gooseneck/fitting, from end of hose. Do not pull hose off fitting. Pulling on, tightens hose on fitting in many situations.
 
ramangain said:
Much appreciated. Should one of my takeaways is that there is no Mr. T authorized procedure for fluid exchange using an exchange machine? If my local dealership or favorite indy shop has a fluid exchange machine, should I allow them to use it?
Click to expand...

If ultra conservative "Mr T has authorised a procedure for fluid exchange using an exchange machine" on any transmission, it is well-hidden -- maybe some Toyota/Lexus dealerships somewhere can advise. I have not been able to find such advice. Independent opinions on this side of the world appear to be divided between those who believe that a pressure flush removes maximum old fluid and gunk and therefore is more effective, and, those who believe that a pressure flush risks damage to seals and other internal parts for little real advantage over non-pressure methods. This is way above my paygrade, so I fall into the conservative "non-pressure, more frequent flush" camp. My focus is on A750F, non-dipstick, 2006 vintage, and making it last forever.
 
I used 2001LC procedure, would highly recommend. Did not remove air box, disconnected line from trans cooler next to radiator. Let the engine run to gently drain the old fluid into a bucket, and refilled with new fluid through the dipstick. I think I stopped engine after draining 3 quarts, refilled 3 qts, repeated till draining fluid became clear as the new going in. Used exactly 17 qts according to my notes, was maybe a bit more than needed.
 
Tips:
1) Mark catch bucket with 1 quart intervals hash marks. Helps to actually see how much came out, and thus how much to put back in transmission. This is helpful when adding through dipstick. It's a must in non dipstick transmissions (04-07).
2) With non dipstick. Add 1/4 to 1/2 quart extra. It makes setting transmission level, a 1 shot deal. ;)
 
2001LC said:
Tips:
1) Mark catch bucket with 1 quart intervals hash marks. Helps to actually see how much came out, and thus how much to put back in transmission. This is helpful when adding through dipstick. It's a must in non dipstick transmissions (04-07).
2) With non dipstick. Add 1/4 to 1/2 quart extra. It makes setting transmission level, a 1 shot deal. ;)
Click to expand...

Yep, that's what I did - marked in 1 qt intervals on the catch bucket. Worked perfect to keep track.
 
Ok, so I wanted to check the condition of my transmission fluid. I read this thread carefully a couple of times and gave it a go.

When I opened the overflow plug about 12oz of transmission fluid came out! This is a bit excessive since the manual @IndroCruise linked says the overflow tube only holds about 3cc of transmission fluid.

The good news is that the fluid itself looks good and smells good and I didn't see any deposits on the napkin test.

But now I am worried about what's going on with the overflow. Either (A) there was way too much ATF in the transmission to begin with (does that hurt anything?) or (B) is there maybe a problem with the overflow tube? If it is (B) and there is a problem with the overflow I am now worried that I have drained too much ATF out of the transmission.

When I unscrewed the overflow plug ATF came out pretty good (I was expecting a trickle) and then eventually slowed down to a trickle. After about 12oz (one cup of coffee) I reinstalled the plug.

What do you guys say is going on and what would you do?

EDIT: I did put about the same amount that drained out back in and will investigate/research further. Next time I want to drain & refill by draining out of the actual drain plug. This was a good practice run.

By the way, it took me quite a while to identify where the refill plug is. Eventually I found it. Good times. Always learning.
 
Last edited:
Did you bring up the tran temp to speck before opening check flow valve. If not it won't give you proper fluid level.
 
And, Dorian, was the engine running? That amount is about as much as is kept in rotation while running. ATF level is always checked with engine running and at operating temperature.
 
uHu said:
And, Dorian, was the engine running? That amount is about as much as is kept in rotation while running. ATF level is always checked with engine running and at operating temperature.
Click to expand...

No, it wasn’t. This is good information. Thank you.
 
Dorian said:
No, it wasn’t. This is good information. Thank you.
Click to expand...
Take note Dorian. Transmission fluid needs to be 97f min- 115F max. This was a temperature change (T-SB-0129-08, July 9, 2009) from factory original temp range. You must also shift through all gears first. Reading ATF temp through tech stream is best. But you can read with IR gun pointed at trans pan. But note; the OAT, reflected and radiant heat will affect the reading on the IR gun.

If you'd like to stop by one day, I can check for you. Just PM me for contact info!
 
LC CT said:
About to do this on an 04 Lx, having a tough time seeing if you are using the top or bottom line coming though, I just can’t make it out in the picture. Thanks.
Click to expand...
Top. Look back at pictures again, they're very clear!
 
Planning to do a transmission fluid exchange for my 1998 lx470 just by taking the fluid out of the transmission pan plug. How many quarts of fluid will probably come out? Also, does anyone know the full capacity for the transmission?
 
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