Drain and fill tranmission
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Hammer0313
New member
I would like to know also, if anyone has done this please post the procedure.
big51810321
New member
The flush will definitely be a "complete" tranny service, drop and fill will not replace the oil in the cooler and in the lines and you'll be mixing old with new oil...
I bought my 2005 SR5 to the dealer for a transmission service and on the invoice they noted 6 quarts of fluid and $361.
I'm talking to a transmission shop for a complete transmission swap next time.
UPDATE: I've changed my mind. I'll do another 5 quart D/F at 200,000 miles. About 40% of the fluid in there now is new and 60% old - based on D/F at 100,000 miles.
I'll use a private shop where I can supply the Toyota brand tranny fluid next time. Where I am it is $15 a quart from the dealer.
PS Why can't you just measure what you drain out, and replace it with the same amount? Anyone?
Nice link below: How to Drain/Refill Automatic Transmission | Tacoma World
I'm talking to a transmission shop for a complete transmission swap next time.
UPDATE: I've changed my mind. I'll do another 5 quart D/F at 200,000 miles. About 40% of the fluid in there now is new and 60% old - based on D/F at 100,000 miles.
I'll use a private shop where I can supply the Toyota brand tranny fluid next time. Where I am it is $15 a quart from the dealer.
PS Why can't you just measure what you drain out, and replace it with the same amount? Anyone?
Nice link below: How to Drain/Refill Automatic Transmission | Tacoma World
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Lester Lugnut
New member
I maintain the wife's 2014 4R and my 2015 Tacoma along with a list of other vehicles.
Both the 4R and Tacoma have the Aisin A750E 2WD transmission. The 4WDs have an Aisin A750F. Transmission fluid change on either is the same. For the purposes of changing ATF fluid, the only difference between the E/F is the location of the fill plug. E on the right - F on the left.
Toyota provided a means for the home mech to easily change the ATF fluid in these transmissions. There are 2 writeups at tacomaworld.com on how to do a pan drain and refill and another that covers the flush. If I can locate them, I'll post them here.
People who possess limited skills have convinced themselves this is a dealer-only task. If you have common sense and can read, there's nothing to accomplishing either a pan drain/refill or a flush on these vehicles.
In many of the A750x transmission fluid change threads on the WEB, people mention refilling from below with a hand pump attached to the Toyota WS ATF 1 qt. bottles. That is a time-consuming pain in the ass as you will do this repeatedly for every qt. bottle you use. Refill from above(under the hood). A 6 ft. length of vinyl hose - 5/8 OD-1/2ID and a funnel attached to the fill end. The end that connects to the transmission fill plug will fit snugly. Install it correctly and there will be no worries of it falling out. Pic below of fill funnel and a homemade OBD pin 4/13 jumper. You can buy these "blanks" on ebay and then simply install your own jumper wire.
DRAIN/REFILL
How to Drain/Refill Automatic Transmission | Tacoma World
FLUSH
DIY: Full Flush for Automatic Transmission | Tacoma World
The fluid level setting procedure is also available in the FSM provided by nashman69G:
My Files
Either of these sections:
A750E/F - Automatic Transmission Fluid - Adjustment - you do not need the special tool mentioned to jumper OBD ports 4 and 13 - a small paper clip gets the job done.
Both the 4R and Tacoma have the Aisin A750E 2WD transmission. The 4WDs have an Aisin A750F. Transmission fluid change on either is the same. For the purposes of changing ATF fluid, the only difference between the E/F is the location of the fill plug. E on the right - F on the left.
Toyota provided a means for the home mech to easily change the ATF fluid in these transmissions. There are 2 writeups at tacomaworld.com on how to do a pan drain and refill and another that covers the flush. If I can locate them, I'll post them here.
People who possess limited skills have convinced themselves this is a dealer-only task. If you have common sense and can read, there's nothing to accomplishing either a pan drain/refill or a flush on these vehicles.
In many of the A750x transmission fluid change threads on the WEB, people mention refilling from below with a hand pump attached to the Toyota WS ATF 1 qt. bottles. That is a time-consuming pain in the ass as you will do this repeatedly for every qt. bottle you use. Refill from above(under the hood). A 6 ft. length of vinyl hose - 5/8 OD-1/2ID and a funnel attached to the fill end. The end that connects to the transmission fill plug will fit snugly. Install it correctly and there will be no worries of it falling out. Pic below of fill funnel and a homemade OBD pin 4/13 jumper. You can buy these "blanks" on ebay and then simply install your own jumper wire.
DRAIN/REFILL
How to Drain/Refill Automatic Transmission | Tacoma World
FLUSH
DIY: Full Flush for Automatic Transmission | Tacoma World
The fluid level setting procedure is also available in the FSM provided by nashman69G:
My Files
Either of these sections:
A750E/F - Automatic Transmission Fluid - Adjustment - you do not need the special tool mentioned to jumper OBD ports 4 and 13 - a small paper clip gets the job done.
Attachments
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Great thread on a bunch of DIY maintenance:
DIY maintenance quick reference - Toyota 4Runner Forum - Largest 4Runner Forum
DIY maintenance quick reference - Toyota 4Runner Forum - Largest 4Runner Forum
Whippersnapper02
Senior Member
I flush myself using the transmission's own pump following the TW writeup. Did it twice in my Tacoma and it was stupid easy.
MAXISTYLES
New member
Funnel Trick hanging of the hood looks familiar.
Mike07SE
New member
Get one of these.
https://www.amazon.com/gp/product/B00AOAFP9C/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
Haven't needed to do the fluid yet on my 5th, but have done the coolant line method on my 4th. This pump is cheap and makes life easy. Still works for me and if it does burn up i won't feel bad. I want to say I do changes in about an hour.
Only reason to do the fill plug is to top off after doing the fluid level check. I usually overfill 1/2 qt or so at the end of the exchange process and let the excess run out.
https://www.amazon.com/gp/product/B00AOAFP9C/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
Haven't needed to do the fluid yet on my 5th, but have done the coolant line method on my 4th. This pump is cheap and makes life easy. Still works for me and if it does burn up i won't feel bad. I want to say I do changes in about an hour.
Only reason to do the fill plug is to top off after doing the fluid level check. I usually overfill 1/2 qt or so at the end of the exchange process and let the excess run out.
Lester Lugnut
New member
I found that pic on the web - saved for demo purposes. The point of it was to show people that refilling from the top is easier than filling from below. Did you take the pic?
I don't hang the funnel when refilling. Hose is routed below to fill hole. Hold funnel in one hand - pour with the other. ATF containers lined up on large plastic shroud that sits over radiator. Finish one - grab another.
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themaestro
New member
Besides your engine, the tranny is the most expensive part to replace. Changing the fluid is a good move, I did mine myself. You can get a case of Toyota ATF WS fluid on amazon. I used a hand pump, and as others stated, that's the hardest part of the job. Its literally the same process as doing the diffs, except I ran the engine to circulate the fluid between each fill, until I was out of fluid. I used the check plug to verify the level (at a specified temp, I believe it was like 107F)
In my opinion, if you want these trucks to last 300k+, changing the tranny fluid every 50k is cheap insurance.
In my opinion, if you want these trucks to last 300k+, changing the tranny fluid every 50k is cheap insurance.
MAXISTYLES
New member
I'm just kidding around with you. But, yes that is a pic from when I did my fluid change. I found it easy with that set up, just have to pour the fluid in slowly. I had my 10 yr old son under the truck to make sure nothing was pouring back out.
I also measured out how much I drained and filled it with slightly more. It was about 5 quarts. Then did the temp check with the small wire.
71gs3504sp
Member
I have done transmission pan drain and fill on my 08 FJ every 10k miles that I owned for 11 years, sold it last May 2018 with just under 200k miles on it and never had an issue with the transmission. Now on my 18 4runner I just did transmission pan drain and fill at 16k miles and the fluid was nice and dark reddish brown, it was exactly 3.25 quarts so I replaced it with only Toyota WS fluid, will be doing transmission pan drain and fill on my 4runner every 15k miles from now on.
Jivewalker
Member
I'm at 182,000 and haven't even looked at the fluid, still runs and shifts great. Thanks to this post though, I will be doing the flush soon!
If you have that many miles without ever changing the fluid, you may want to research a drain and fill versus a full flush.
Mike07SE
New member
I think the proper method and term here would be to do an exchange. You don't ever really want to do a flush on a transmission (machine forces fluid through and out the system). An exchange is gentler and for the shade tree mechanics like us it's a matter of letting the pump in the transmission do the work through the cooler lines. Turn the truck on and pump 2 qts out, pump back in 2 qts, etc. There are machines in trans shops and dealers that work via this method as well. Just got to ask what they have and use.
The drain & fill is sometimes recommended when fluid is that old as a complete transfusion could have the possibility of being a shock on the system. Again this also opinion and not factual. Results may vary.
Jivewalker
Member
100% agree with both of you, no flush just drain and fill. I will probably just pull a sample first and have a look at it. Owners manual doesn't say to change it, just inspect it, unless you are towing, etc. So I'm not overly concerned, I just know it's getting old and I want another 100k out of it. Can't hurt to swap the fluid.
I just did this! Refilled from under the hood. Everything was fine. I had abandoned the idea because I could not find a single video on YouTube. Then, when my crappy little pump did not fit the ATF WS opening, I looked on my shelf and I had a clear tube with the right diameter. I took this as "a sign" and got 'er done. Thanks for the tip!!
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