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Ultragauge transmission temp

Discussion in '2nd Gen. Tacomas (2005-2015)' started by MyMistress, Mar 2, 2014.

Page 16 of 36
  1. Mar 3, 2015 at 2:31 PM
    #301
    Green Jeans

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    Green Jeans 6MT AC TRD OR 1GR-FE FTMFW

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    Why would the upgraded UG only read Trans temp's on Automatics?
     
    Green Jeans, Mar 3, 2015
    #301
  2. Mar 3, 2015 at 3:00 PM
    #302
    Sterdog

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    Sterdog Offline

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    Manuals don't overheat for the same reasons. Automatic transmissions use the fluid to transfer power so they tend to build up a lot of heat under heavy use or lots of shifting. Manuals usually don't have heat issues unless they've been pushed way past their operating capacity.

    Plus I don't think the Tacoma has a temperature sensor on the manual transmission that reports back exact temperature. I think it's just a dummy light for when the transmission falls outside of a certain limit, just like the oil pressure sensor on the Tacoma.
     
    Sterdog, Mar 3, 2015
    #302
  3. Mar 3, 2015 at 3:01 PM
    #303
    CreepyCrawly

    #303
    CreepyCrawly Well-Known Member

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    Do manuals have a trans temp sensor?
     
    CreepyCrawly, Mar 3, 2015
    #303
  4. Mar 3, 2015 at 5:38 PM
    #304
    Green Jeans

    #304
    Green Jeans 6MT AC TRD OR 1GR-FE FTMFW

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    +1
     
    Green Jeans, Mar 3, 2015
    #304
  5. Mar 3, 2015 at 5:56 PM
    #305
    Jefes Taco

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    Jefes Taco Well-Known Member

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    Manuals use gear oil for lubrication only. They really don't get hot or overheat. No real need to watch the temps or change out the fluid for that matter. Most are sealed systems now.

    Automatics use the fluid as hydraulics. Create's a lot of heat. Especially when there's a lot of up/down shifting. The heat breaks the fluid down, lowering it's useful life. The hotter it gets, the lower the life span.
     
    Jefes Taco, Mar 3, 2015
    #305
  6. Mar 3, 2015 at 6:47 PM
    #306
    Add2481TRD

    #306
    Add2481TRD Well-Known Member

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    I just got my MX 1.3...I also got "Err" for my Trans F temp. I checked the presets against the ones listed at the start of the thread. They were different. I wrote down the factory info and then changed it to match the code info listed here. Worked...now I have a Trans F read out.

    I selected the Tundra/Tacoma 2005+ when placing the order. Guess something was a miss. I have a 2015 Tacoma PreRunner.
     
    Add2481TRD, Mar 3, 2015
    #306
  7. Mar 4, 2015 at 5:51 AM
    #307
    MTopp

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    MTopp Professional bear handler

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    Codes for the people with errors
     
    MTopp, Mar 4, 2015
    #307
  8. Mar 4, 2015 at 2:23 PM
    #308
    ancient11

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    ancient11 Well-Known Member

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    Finally got it working....for some reason I had it as Mgauge 2 instead of "5". Appreciate all the work the OP and others invested in this project.[​IMG]
     
    ancient11, Mar 4, 2015
    #308
  9. Mar 4, 2015 at 2:26 PM
    #309
    MGtaco2.7

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    MGtaco2.7 MEMBER

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    Trans temp hit 160 today for the 1st time...
    [​IMG]
     
    MGtaco2.7, Mar 4, 2015
    #309
  10. Mar 4, 2015 at 3:14 PM
    #310
    CreepyCrawly

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    CreepyCrawly Well-Known Member

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    Towing or normal driving?
     
    CreepyCrawly, Mar 4, 2015
    #310
  11. Mar 4, 2015 at 3:27 PM
    #311
    Add2481TRD

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    Add2481TRD Well-Known Member

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    The group at Ultragauge pre-programmed my unit for the 2005-2011 series instead of the newer year models. So if you recently ordered one and have a 2012-2015 that comes up Err, check to see if they programmed it for the earlier year series.

    Does anyone have the other Mgauge parameters for the newer Tacoma series? Don't think I would use them much but I would like to correct them if possible.
     
    Add2481TRD, Mar 4, 2015
    #311
  12. Mar 4, 2015 at 4:18 PM
    #312
    MGtaco2.7

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    MGtaco2.7 MEMBER

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    Normal driving to work
     
    MGtaco2.7, Mar 4, 2015
    #312
  13. Mar 4, 2015 at 5:27 PM
    #313
    Davidski

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    Davidski Active Member

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    Day 1 driving with Mx 1.3 w/Trans Temp.

    Vehicle start 10am: Coolant temp and trans temp were at same temp, 64deg inside garage.

    First task was towing a ~3000 boat & trailer 25 miles. Downhill the Trans temp stayed in the 140 deg range. Once onto mostly flat terrain the trans temperature jumped to 155 - 170deg. Starting from a stop, the temp would immediately pop up to 180deg until the vehicle was back at cruising speed. temp would drop back down to 170deg or below.

    Dropped off boat and trailer and then drove 12 miles on flat same roads. Transmission temp would hover at 140-150deg.

    Now that I am watching the transmission temp, it is useful to understand the numbers. I found this chart useful, it was posted on TW in the towing section under 'what are you towing'

    Here is the link to article original: http://www.tciauto.com/tc/trans-life-expectancy/

    trans_life_expectancy.jpg
     
    Davidski, Mar 4, 2015
    #313
  14. Mar 4, 2015 at 6:24 PM
    #314
    1rooster

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    1rooster TACOMA31750

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    That's some pretty good observations there! Today the outside temp got to 82*f and noticed my trans temps jumped from 130 to 165 while doing 0-60 run. Soon after starting to coast temps dropped back to 130 ish within the next mile.
     
    1rooster, Mar 4, 2015
    #314
  15. Mar 5, 2015 at 5:39 AM
    #315
    MTopp

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    MTopp Professional bear handler

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    I need a trans cooler.
     
    MTopp, Mar 5, 2015
    #315
  16. Mar 5, 2015 at 5:48 AM
    #316
    ejl923

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    ejl923 Well-Known Member

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    Just ordered one, looking forward to monitoring trans temps
     
    ejl923, Mar 5, 2015
    #316
  17. Mar 5, 2015 at 6:52 AM
    #317
    jdavis92

    #317
    jdavis92 Well-Known Member

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    Got my UG back yesterday. It's odd how little I monitor my stock gauges, but pay the appropriate level of attention to the UG.

    Just a couple of quick trips in town and the tranny temps floated around 115F with an outside temp of 40. Observed some changes while moving, at a stop, and coasting. Interesting stuff. I will have to pay a bit closer attention over the next few days so I can report back.

    Jeff in Flagstaff
     
    jdavis92, Mar 5, 2015
    #317
  18. Mar 5, 2015 at 7:04 AM
    #318
    ejl923

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    ejl923 Well-Known Member

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    Has anyone noticed a correlation between low trans fluid and trans temps?
     
    ejl923, Mar 5, 2015
    #318
  19. Mar 5, 2015 at 7:13 AM
    #319
    BlueT

    #319
    BlueT Well-Known Member

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    Normal, once air gets trapped in the tran cooler it reduces efficiency, the more fluid you have the better cooling.
     
    BlueT, Mar 5, 2015
    #319
  20. Mar 5, 2015 at 7:18 AM
    #320
    ejl923

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    ejl923 Well-Known Member

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    I guess what im saying is for people who had low trans fluid from the factory, did they notice a rise in temps, and what temp would that be?
     
    ejl923, Mar 5, 2015
    #320
Page 16 of 36

Products Discussed in

Hayden Automotive 516 High Performance Transmission Cooler
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Hayden Automotive 678 Universal Rapid-Cool 9.5” x 11” Add-On Transmission Cooler – Not for Direct Replacement of the OE Cooler
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