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2004 Tacoma PreRunner SR5 Temp Gauge

Discussion in '1st Gen. Tacomas (1995-2004)' started by tckendrick, Jun 19, 2013.

  1. Jun 19, 2013 at 4:44 PM
    #1
    tckendrick

    tckendrick [OP] New Member

    Joined:
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    Tal
    Dallas
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    04 PreRunner SR5
    Ive seen some posts about this before, but still haven't gotten a valid answer. What is the optimal temperature for my truck to be running at and how would I check it?
     
  2. Jun 20, 2013 at 11:49 AM
    #2
    BigOly

    BigOly Well-Known Member

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    Bay Area, NorCal
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    04 TRD DC V6 SR5 4WD
    My transmission temp ranges between 160-170 degrees with normal driving.

    My engine temp before I had my old Yota OEM T-stat part replaced ranged between 180-190 degrees. After the old t-stat was swapped with a new Yota OEM part it runs a bit higher now between 190-200 degrees. There have been several reports that the new OEM T-stats run at a higher temperature.

    Also I think it's safe to say that if both temps are below 200 degrees on your taco you are good to go. Also you will want to make sure your transmission temp is not too hot but it should also not be too cold (especially for those cold weather states) for optimal performance and longevity.

    I recommend you use a scangauge via OBD2 port to monitor both your engine and trans temp (via x-gauge). An ultragauge, although cheaper, at this time will only allow you to monitor engine temps on our Tacos.
     
  3. Jun 20, 2013 at 8:27 PM
    #3
    mrbeggins

    mrbeggins LOW.LIGHT.WIDE

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    Tanner
    Airdrie Alberta
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    Yes... I recommend the scangaugeII. It's an excellent way to keep an eye on things. My daily running temps range from 90-93 celcius for engine temps and 170-200 ferhiniet for tranny temps. It displays 4 readings, so I have ATF temp, engine temp, VLT, and intake temps. You can also scroll through a bunch of other readings as well. Very good investment. Especially for only $115
     
  4. Jun 21, 2013 at 6:16 AM
    #4
    ARB1977

    ARB1977 Don't be a dick

    Joined:
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    North Texas
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    2002 TRD 4X4 Auto 5VZFE
    OME 881's, Deaver 8's, Icon remote resiviors
    Off topic, how did you guys get the trans temp reading on your scan gauge?
     
  5. Jun 21, 2013 at 6:47 AM
    #5
    BigOly

    BigOly Well-Known Member

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    Click HERE for the SG code trans temp.
     
  6. Jun 21, 2013 at 8:03 AM
    #6
    PhdNPrerunners

    PhdNPrerunners Well-Known Member

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    The Woodlands, TX
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    2004 DC TRD 4WD
    Are you running a trans cooler or just running the stock one through the radiator?
     
  7. Jun 21, 2013 at 8:09 AM
    #7
    BigOly

    BigOly Well-Known Member

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    04 TRD DC V6 SR5 4WD
    I have a new external cooler in the garage that is ready to mount so I can bypass the radiator to avoid the "pink milkshake" from ever occurring in the future.
     
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