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How to Drain/Refill Automatic Transmission

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Fortech, Dec 5, 2009.

  1. Jan 15, 2016 at 3:18 PM
    #561
    Littlemule1

    Littlemule1 Well-Known Member

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    Thanks for quick answer
    Can anybody else confirm this?
    I'm a little apprehensive about jumping OBD pins, don't want to fry anything . Thanks just trying to be cautious .
     
  2. Jan 15, 2016 at 6:35 PM
    #562
    ejl923

    ejl923 Well-Known Member

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    Well I did it, and have a 2015
     
  3. Jan 15, 2016 at 6:50 PM
    #563
    Rambeaux

    Rambeaux Diäb soulé

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    I used a modified hair pin as a jumper. Remove the coating from the ends and bend it to fit. uploadfromtaptalk1452912480578.jpg

    Also I found this PowerPoint that is very helpful in understanding the check procedure on the Toyota (works only on pc):

    http://www.ciw.com/atf/2007/intro.html
     
    Shamal and Lester Lugnut like this.
  4. Jan 15, 2016 at 7:20 PM
    #564
    Littlemule1

    Littlemule1 Well-Known Member

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    No disrespect meant.
    Just not looking to fry my ECM .
    Again thank you for response !
     
  5. Jan 15, 2016 at 10:55 PM
    #565
    Pabloeeto

    Pabloeeto Well-Known Member

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    K&N filter, 3.5 Aux input mod, Cooper Discoverer AT3s
    According to my service manual this is an accepted method.
     
  6. Jan 16, 2016 at 4:15 PM
    #566
    Littlemule1

    Littlemule1 Well-Known Member

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    thanks alot
    TEMP CHECK MODE WORKED GREAT !:thumbsup:
    had to add approx 6oz/8oz
    :bikewhoops:
     
  7. Jan 25, 2016 at 3:14 PM
    #567
    blazze2005

    blazze2005 Well-Known Member

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    The snapon modus ultra reads my tacoma trans temps. Atf 1 and atf 2 both read exactly the same trans fluid temp

    IMAG1003.jpg
     
    sorgon82 and R0dzilla75 like this.
  8. Jan 26, 2016 at 7:50 PM
    #568
    GrisMunkyNinja

    GrisMunkyNinja Well-Known Member

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  9. Jan 31, 2016 at 5:33 PM
    #569
    stump jumper

    stump jumper Well-Known Member

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    I could not get my 2013 to go in to check mode. I did get the light to stay on after several sequences. It would stay on in neutral and park but go off in any gear. I just figured Toyota changed something on the newer ones just like they did with seat belt chime.
     
  10. Feb 5, 2016 at 11:13 AM
    #570
    flesheatingvirus

    flesheatingvirus Well-Known Member

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    Sub'd for later, but hopefully not.
     
  11. Feb 10, 2016 at 10:00 AM
    #571
    Aguaski

    Aguaski Well-Known Member

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    I have been through most of the 29 pages in this great thread and feel confident in my ability to get the job done this weekend. I have practiced getting the AT Temp light on going from N-D-N. When the engine/transmission are cold the AT Temp light will flash a couple times when I land on N for the 6th time, but then nothing after that, even when I put back to P. Is that right? I thought a cold transmission would give me another couple AT Temp flashes when I go back to P and then go out completely before coming back on steady once the at the correct temperature. If no flashes at P is normal on cold start up then I am good to proceed this weekend.

    I have also tested this after a commute in traffic when I know I am too hot to test the fluid level. When hot I get a steady flashing AT Temp light when I land on N for the 6th time and AT Temp light continues to flash when placed in P. This is all normal for a hot transmission and also signals to me that I am being successful at getting into the AT Temp mode.

    Regardless, I will keep my infrared thermometer close by measuring pan temps. I know AT Temp mode is the most accurate method but the infrared thermometer will let me know if I screwed up the process and got too hot.
     
  12. Feb 13, 2016 at 6:02 PM
    #572
    mlm682577

    mlm682577 Well-Known Member

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    What reader did you get?
     
  13. Feb 18, 2016 at 4:46 AM
    #573
    sorgon82

    sorgon82 wanna go for a rip bud

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    How did it work out for ya?
     
  14. Feb 18, 2016 at 4:47 AM
    #574
    sorgon82

    sorgon82 wanna go for a rip bud

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    If a pump is needed im assuming the refil plug is in a tight spot to get to also.
    Anybody done this procedure yet?
    Im going to try today and cant remember how tight it was for the fill hole last time i was under there.
    Also. It states to install new gasket and o-ring. Is this really necessary?

    Im asking you guys in order to save the embarrassment of the dealership when they have no idea what im talking about if I were to ask them.
     
  15. Feb 18, 2016 at 5:12 AM
    #575
    Aguaski

    Aguaski Well-Known Member

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    I ended up using the OBD Fusion app on my iPhone to measure the fluid temperature. As the Tacoma was warming up I took several measurements on the pan with my infrared thermometer. From cold start through 110 degrees the OBD Fusion temperature and the pan temperature measured by my infrared thermometer were within 1 degree of each other. After 110 through 115 I started to notice a 2-3 degree temperature lag at the pan. I am not an expert but I think if you are between 118 and 123 with a infrared thermometer then you are in the perfect range to set the ATF level.
     
  16. Feb 18, 2016 at 5:17 AM
    #576
    sorgon82

    sorgon82 wanna go for a rip bud

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    Were you having a hard time getting it into temp check by jumping those 2 odb pins is that why you ended up using your phone?
    Are you 2nd gen or 3rd? N how was it getting to the fill hole? Tight with the wrench?
     
  17. Feb 18, 2016 at 7:36 AM
    #577
    Aguaski

    Aguaski Well-Known Member

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    I think I was getting into temp check mode fine but decided I was more comfortable using an OBD scan tool and for fun I frequently measured my pan temp with an infrared thermometer. That said, if anyone is having trouble getting into temp check mode it is my judgement after conducting unscientific tests that using an infrared thermometer to measure pan temps will work fine. Yes there is a temp lag at the pan but I never found the lag to be more than 2-3 degrees from the actual temp. If you are using an infrared thermometer and target a narrower pan temp range of say 118-123 degrees, then in my judgement you will still be falling within the actual 115-130 range needed to set the correct ATF level.

    I have a 2014 (2nd gen Tacoma). Getting to the fill whole on my truck was easy. The bolt was a little tight but it was at about the right tightness you would expect to prevent leakage.
     
    Last edited: Feb 18, 2016
  18. Feb 18, 2016 at 11:00 AM
    #578
    stump jumper

    stump jumper Well-Known Member

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    I crawled under mine yesterday and the fill plug is easy to get to. The problem is filling it with fluid. I was going to use a pump but the fluid now comes in a wide mouth. I am just going to buy about 3' of clear hose and fill from the top with a funnel.
     
  19. Feb 18, 2016 at 11:26 AM
    #579
    ejl923

    ejl923 Well-Known Member

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    I did this, use at least 3/8 ID, tried 1/4 first and took forever
     
  20. Feb 18, 2016 at 12:40 PM
    #580
    Aguaski

    Aguaski Well-Known Member

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