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How to Drain/Refill Automatic Transmission

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

  1. Apr 24, 2016 at 6:49 PM
    #681
    BlueT

    BlueT Well-Known Member

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    Dont do a stupid check mode, just get scnaguage II and read temps that way, it will save you time and aggravation.
     
  2. Apr 24, 2016 at 7:17 PM
    #682
    2015WhiteOR

    2015WhiteOR Well-Known Member

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    Did you at least get the OBD jumper set correctly and saw the various gauge lights flashing?

    A few tips to get it into check mode:

    1. Make sure the engine is running. I saw a video posted a few pages back where a guy couldn't get it to activate, and he didn't have the engine running.
    2. Once the engine is running, all the lights are flashing, and you're in PARK, put your foot on the brake and shift into Neutral. Keep your foot on the brake, and then move the shifter from N to D, D to N, N to D as quickly as you can count out loud: "one, two, three, four, five, six". Around the "six" you should see AT TEMP light up on the cluster. Then just shift into Park and let the truck idle until it warms up.
    3. Just as a reminder, do this procedure on a completely cold truck.

    I think most who can't get into AT TEMP mode are doing it too slow.
     
  3. Apr 25, 2016 at 3:27 AM
    #683
    stump jumper

    stump jumper Well-Known Member

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    Yep, did all that 3 different times.
     
  4. Apr 28, 2016 at 1:19 PM
    #684
    4WD

    4WD cRaZy oLdmAn

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    Ok, so I guess you check it like a diff.....

    But I don't know anyone that would go thru all that shit, I wouldn't & not because I lack the skills, I lack the interest really & was under the belief that it was a "flush" & fill, not drain & fill like my A340F
     
  5. Apr 28, 2016 at 1:23 PM
    #685
    2015WhiteOR

    2015WhiteOR Well-Known Member

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    It's really no different. The only thing is they got rid of the dip stick and put a procedure in the ECM so you can get the correct level.

    The FJ guys with the same transmissions seem to prefer doing cooler line flush and then using the OBD jumper method to check the level. I'm in the school of thought that draining and filling 30% of the fluid each year will keep the additives strong.
     
    Lester Lugnut likes this.
  6. Apr 28, 2016 at 1:30 PM
    #686
    4WD

    4WD cRaZy oLdmAn

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    Probably so....
     
  7. Apr 29, 2016 at 4:55 AM
    #687
    ejl923

    ejl923 Well-Known Member

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    i have no problem with Toyotas procedure to ensure a correct fill. I do have a problem as someone who takes great care of their equipment and cant check fluid level easily, say once a week. I dont see why they cant add a cheap dipstick on a $30k+ vehicle as peace of mind for people who care. If not that, even cheap generators have a low oil warning light.
     
  8. Apr 29, 2016 at 5:05 AM
    #688
    Lester Lugnut

    Lester Lugnut Well-Known Member

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    I wish there were options. Substitute one feature for another. Get rid of the problem-plagued Entunes and give me a warning light for low transmission fluid level/temp. The stick would be nice, but I doubt they're going to resurrect it.
     
  9. Apr 29, 2016 at 5:28 AM
    #689
    smugly

    smugly Well-Known Member

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    some and more and more and more and
    It's not done for the people that do care, its done for the people that don't care or shouldn't be messing with it . Which are in far greater numbers
     
  10. Apr 30, 2016 at 6:34 PM
    #690
    IPNPULZ

    IPNPULZ Well-Known Member

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  11. May 1, 2016 at 7:39 AM
    #691
    Tex-Tac

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  12. May 1, 2016 at 7:55 AM
    #692
    windsor

    windsor Just a guy

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    I did it pretty slow and it worked. Went into AT TEMP on the 3rd shift. Took about half an hour to get to temp.
     
  13. May 3, 2016 at 9:22 AM
    #693
    tweety

    tweety Member

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    Just wanted to say THANKS to Fortech for his great instructions. I followed them exactly and had no problem.
     
  14. May 15, 2016 at 7:57 AM
    #694
    jeffwv

    jeffwv Member

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    Went to check atf fluid using these procedure; after 3-4 shifts from N to D, the ATF light came on for 2 seconds went off, then i shifted to park per instructions but ATF light did not come on again for the 2 seconds; then waited 15 minutes idling and no light ever came on. Once the ATF light came on during the shifts from N to P, but not when put back in P, am I in the ATF check procedure or not? Or should I have kept it idling longer than 15 minutes?
     
  15. May 15, 2016 at 8:11 AM
    #695
    Lester Lugnut

    Lester Lugnut Well-Known Member

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    Some of the notes I took when putting 2015 Tacoma PreRunner V6 into temp check mode:

    - Jumper OBD-II ports 4 & 13 with a small paper clip

    - Turn ignition switch to first position. You should see many cluster lights blinking. If not, you did not properly jumper 4 & 13

    - Start vehicle - move thru all of the gears a few times. Move to D; then back and forth between N & D for 6 secs. For the Tacoma, you should see the "A/T Temp Oil" light illuminate for 2 secs. If this occurs, shift truck into P and remove the jumper wire. Vehicle entered Temp Check Mode at 1:33pm

    - 1:46pm - "A/T Oil Temp" light on solid. Truck is now at the lower part of the acceptable temp. range. IR thermometer now reads 95 degrees F at front of transmission pan and 93 degrees F at the back of the transmission pan. I took IR reading for curiosity sake. Did NOT use it to determine when the fluid temp was at desired temp.

    - 2:00pm - "A/T Temp Oil" light flashing. This indicates the transmission fluid temp. is excessive. IR thermometer now reads 110 degrees F at the front of the transmission pan and 107 degrees F at the rear of the transmission pan.
     
  16. May 15, 2016 at 8:26 AM
    #696
    ImpulseRed008

    ImpulseRed008 Gone But Not Forgotten

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    I think I idled about 19 or 20 minutes.....
     
  17. May 15, 2016 at 8:38 AM
    #697
    jeffwv

    jeffwv Member

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    As a follow up: even though the ATF light did not come on when putting back in park, after another 5 minutes (the truck was already warm), the ATF light came on steady; I checked the fluid; one single drop on the overflow plug came out and that was it; turned truck off, added 16 ounces of Toyota ATF WS; went through procedure again, took only a few minutes for ATF light to again come on solid, immediately checked overflow (with engine running of course) and this time a slow but steady dripping occurred. This is a 2015 with only 1,800 miles and IT WAS LOW BY 16 OUNCES. FUCK Toyota for this "sealed" transmission making checking it cumbersome and FUCK Toyota for delivering this LOW on ATF fluid.
     
  18. May 20, 2016 at 2:11 PM
    #698
    Mehullica

    Mehullica Well-Known Member

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    The fluid adjustment is correct EXCEPT for 1 step, & the probably the most important. After correctly entering fluid temp detection mode, you need to remove the jumper wire from DLC3. If you don't the ECU will stay in base timing & not maintain the correct idle speed & ATF cooler flow to adjust the ATF level properly. The idle will fluctuate & cause the fluid level in the pan to go up & down incorrectly while you have the check plug out, you'll let out of much. You also must have all accessories off to reduce alternator load & to maintain exactly 800 rpm.
     
  19. May 20, 2016 at 2:34 PM
    #699
    locster

    locster Well-Known Member

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    What about the tranny cooler thermal valve on the model with factory tow package? Do we have to manually open it? We have to do that step on Tundra.
     
  20. May 20, 2016 at 3:13 PM
    #700
    Lester Lugnut

    Lester Lugnut Well-Known Member

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    That might be done during a FLUSH. This thread covers a drain and fill. In my opinion, the most important part of this thread is understanding how to set the correct fluid level once fluid has been changed, regardless of whether you did a complete flush or just a pan drain.
     

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