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Running Slightly Hot

Discussion in '1st Gen. Tacomas (1995-2004)' started by Snowman, Jan 7, 2011.

  1. Jan 7, 2011 at 10:39 AM
    #1
    Snowman

    Snowman [OP] I have a problem for your solution…

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    Hey
    Have a little issue with my '04 2.7, it runs a little bit hot. The temp needle is slightly above half when warmed up (maybe 5/8 the way up). I replaced the thermostat which made no difference. Its not leaking any coolant that I can see or smell, dumped the rad when I changed the thermostat so its all new coolant, heat and a/c in the cab work fine and have no effect on the temp. Any ideas?
     
  2. Jan 7, 2011 at 10:41 AM
    #2
    BakoTruck

    BakoTruck Well-Known Member

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    Herbie Hancock
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    Mostly stock for now, I have added a cb radio, various cheap mods and I plan on adding aftermarket wheels and other items in the future.
    Could be an air bubble in the system.
    Check the fins and make sure nothing is blocking air flow.
    Do a flush.
    Water pump could be going bad.
     
  3. Jan 7, 2011 at 6:13 PM
    #3
    Snowman

    Snowman [OP] I have a problem for your solution…

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    Well I completely drained all the coolant when I did the thermostat, so bubbles are not likely and there is nothing blocking the rad in any way. No unusual noise from the wp, but I guess that could be possible. Nothing effects the temp, running the heater, stoped in traffic, towing, revving high, nothing makes the temp change. Its like everything is running normal, but the temp gauge is just slightly higher.
     
  4. Jan 7, 2011 at 6:29 PM
    #4
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    FlimFlubberJAM
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    Get a digital temp gauge and check it. It should be running between 185*, and 200*
     
  5. Jan 7, 2011 at 6:31 PM
    #5
    w/chunter

    w/chunter Well-Known Member

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    my '04 runs has ran a little above the half way mark since I purchased my Toyo in July. I thought it was normal. Makes for a good heater in the winter. :)
     
  6. Jan 7, 2011 at 6:51 PM
    #6
    Miata Tech

    Miata Tech Well-Known Member

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    Both of my Tacoma's have run a hair over half way on the gauge. Actual coolant temp is 188-193. It's not Really a gauge it's more of an Indicator
     
  7. Jan 7, 2011 at 7:04 PM
    #7
    Snowman

    Snowman [OP] I have a problem for your solution…

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    hmmm. I bought mine back in Sept, I just cant remember if it was always like that. Maybe the gauge is just a little less than perfect.
     
  8. Jan 7, 2011 at 7:12 PM
    #8
    joes06tacoma

    joes06tacoma Well-Known Member

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    Assuming that it used to run cooler on the gauge, why not change the temp sender just for giggles? Can't cost too much.
     
  9. Jan 7, 2011 at 7:23 PM
    #9
    Snowman

    Snowman [OP] I have a problem for your solution…

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    I thought about that, but I hate throwing parts at it not knowing the real problem.
    Nope, clean as a whistle.
     
  10. Jan 7, 2011 at 7:59 PM
    #10
    Digiratus

    Digiratus Adventurer

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    My dash indicator is always slightly more that half way. Nothing seems to effect it. A couple of months ago I got a ScanGauge and found the water temps actually does fluctuate a bit, unlike what the dash indicator shows. The typical normal running temps for my truck range from 192-193*F to 200-202*F. I am guessing it has a "190*" t-stat in it but not really sure.
     
  11. Jan 7, 2011 at 8:05 PM
    #11
    Snowman

    Snowman [OP] I have a problem for your solution…

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    Its good to hear that I'm not the only one like this. Maybe its "normal"
     
  12. Jan 8, 2011 at 8:52 AM
    #12
    mdub

    mdub Active Member

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    My 2001 does the same thing. It looks like the needle is just a touch above the middle. I have had it for almost 2 years, flushed the radiator after having it of for 3 months, put in a new thermostat. I think it is normal that it is off just a little. I've had no problems....

    Have fun!
    Mdub.
     
  13. Jan 8, 2011 at 11:03 AM
    #13
    TacomaJPP

    TacomaJPP To secure peace, is to prepare for war

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    My 1997 and 2003 both showed slightly higher than middle.

    I have an ultragauge on my truck and my truck temperature (digitally displayed from the ECU) runs between 196 and 202 degrees F.
     
  14. Jan 8, 2011 at 11:31 AM
    #14
    brelandt

    brelandt Well-Known Member

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    all gauges are crapping. High mass produced parts by the cheapest company they could get them from. The tolerances are not that tight. It's not a gauge that needs to be 100% accurate anyhow. Don't worry about it. it's fine.
     
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