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Auto Trans Temp w/Cooler

Discussion in '1st Gen. Tacomas (1995-2004)' started by Hawaiian05, Sep 13, 2012.

  1. Sep 13, 2012 at 10:22 AM
    #1
    Hawaiian05

    Hawaiian05 [OP] Well-Known Member

    Joined:
    Aug 3, 2012
    Member:
    #84019
    Messages:
    316
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    Male
    First Name:
    Tony
    Boise, ID/ Hawaii
    Vehicle:
    2006 4Runner Sport/ 04 TRD DoubleCab 4wd-Sold
    Bilstein 5100's/ OME 881's/ Toytec AAL/ Toytec Diff Drop/ TRD Tundra Wheels/ Duratracs/ Hayden 678 Trans Cooler/ Rear Diff Breather Extension/ ScanGuage2/ Wet Okoles
    Hi All,

    I recently (a few months ago) installed a Hayden 678 auto trans cooler and love it. It was a very easy install and adds that extra piece of mind that I keep my trans fluid temp cooler while driving. I also run a Scan Gauge 2, so I have a habit of keeping a close eye on the trans fluid temp.

    My question is, who else with a auto trans cooler (any brand) and a Scan Gauge (or similar) keeps an eye on their trans fluid temps, and what is their "average" running temp? Prior to the cooler, I would see a range of 175-220 (the higher end was when passing through mountains/steep grades). Now, with the cooler, I am seeing a noticeable difference of 120-170sh. Also, now that it's getting colder outside, I'm seeing temps as low as 95-120sh.

    I understand that the cooler the better, but is there any point in which the fluid is too cool, or becomes inefficient, or even bad?

    All is appreciated!

    Thanks,
    Tony
     
  2. Sep 13, 2012 at 10:26 AM
    #2
    Trifenix

    Trifenix Well-Known Member

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    so cal
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    99 LT 5 lug Taco
    Yep same results here. You can even feel the temp difference when you feel the area around the shifter.
     
  3. Sep 13, 2012 at 11:13 AM
    #3
    paranoid56

    paranoid56 Well-Known Member

    Joined:
    Jul 25, 2012
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    San Diego
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    14 double cab taco
    i think there is a point where it gets too cold. i know some setups acutally bypass the cooler below a set temp.
     
  4. Sep 13, 2012 at 11:19 AM
    #4
    pippen

    pippen that was'nt a vitamin!!

    Joined:
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    Pippen
    Eastern NC
    Vehicle:
    04 PreRunner Ext.
    I'm sure at some point it could get too cold, but I don't think you'll need to worry about that :D I might look into one :)
     

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