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Temperature issue in my 98

Discussion in '1st Gen. Tacomas' started by Submariner, Jun 25, 2012.

  1. Jun 25, 2012 at 4:26 PM
    #1
    Submariner

    Submariner [OP] Member

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    Wayne
    Eagle Point, Or
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    air filter and custom headlights
    It seems that my temp gage moves alot while I am driving. Also it seems to take a long time to get warm.

    Any suggestions or thoughts?

    Thanks
     
  2. Jun 25, 2012 at 4:47 PM
    #2
    Madjik_Man

    Madjik_Man The Rembrandt of Rattle Can

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    Boulder, CO
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    1998 Ext Cab TRD 5MT sunfire red pearl
    About 25 pounds of spray paint and vinyl dye
    By no means do you want me diagnosing your truck. I'm just taking a guess here and seeing if it's what the actual mechanically inclined guys think:

    Busted thermostat
     
  3. Jun 25, 2012 at 4:54 PM
    #3
    Ga tacoguy

    Ga tacoguy Well-Known Member

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    :) Well, you have a problem, and we will need some more information to help find your problem. How many miles do you have on your Taco ? Have you changed your antifreeze ever ? Can you do your own repairs or do you take it to be repaired ?

    From your information that you have provided, you have a bad thermostat. Have you changed it in the past and how long ago did you change it ?

    When you reply with some more info, we will give you more help. Good Luck.
     
  4. Jun 25, 2012 at 6:24 PM
    #4
    Robertgeejr1

    Robertgeejr1 Well-Known Member

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    Aorora, Ill, yeah!
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    I have done all the hi-pro mods for a life time, since I got this truck at a great price, I will be happy with showroom new.
    I flushed the coolant and replaced the hoses and thermostat on my truck this spring and it needed it. none of which was hard. it was dirty so it was tiime consuming. anyway one word of advise, go to the dealership or go to NAPA and get a high quality thermostat to replace your. I'm sorry but the cheap ones at the parts stores don't compare
     
  5. Jun 26, 2012 at 9:06 AM
    #5
    Submariner

    Submariner [OP] Member

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    air filter and custom headlights
    My Taco has 150K on the truck. I just bought it a month ago. :)

    The coolant looks like coolant suppose to look like. I guess. It does not overheat. just takes a long time to get warm. could the thermostat be stuck open? :confused: :eek:

    I think that I can replace a therostat. I have done it in the past to my ford truck and to my jeep. Is there a trick to changing the Thermostat on a Taco.

    How hard is it to do?:rolleyes:
     
  6. Jun 26, 2012 at 9:11 AM
    #6
    98tacoma27

    98tacoma27 :POOPCORN: Thor

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    Yes, it's an easy fix.
     
  7. Jun 26, 2012 at 9:39 AM
    #7
    scocar

    scocar Not one of the 10,000 Baja Edition Elite Guard

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    If the hoses are old and it gets hot at higher speeds, you could also have a collapsing hose. Might as well replace the top and bottom hoses while you are making a mess.
     
  8. Jun 26, 2012 at 10:50 AM
    #8
    Robertgeejr1

    Robertgeejr1 Well-Known Member

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    I have done all the hi-pro mods for a life time, since I got this truck at a great price, I will be happy with showroom new.
    well i got my truck last fall, and thank god we did not have a winter, and this spring I flushed her out.... just so I would know how new the coolant was and how clean the radiator was... and it took 2 days... flush, fill, and run, it was very dirty. but its easy to do, and your will save a bundle doing it your self.
    and remember like oil, auto parts stores are required to take back old anti-freeze.
     
  9. Jun 26, 2012 at 11:39 AM
    #9
    ferg79

    ferg79 Active Member

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    I had the same problem with my 98. Gauge all over the place. Had and air bubble in the radiator. Bled it out and no more problems.
     
  10. Jun 26, 2012 at 11:51 AM
    #10
    4Wheelin4Banger

    4Wheelin4Banger Longtime Toyman

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    My '95 PreTaco thermostat stuck open and took forever to warm up. Easy to replace.
     
  11. Jun 26, 2012 at 12:00 PM
    #11
    Blackcat10

    Blackcat10 Well-Known Member

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    When you replace your thermostat there is a small hole with a brass piece in the hole located on the outer ring of the thermostat. This is a air bleed. Make sur this is positioned up.
    And yes it sounds as if your thermostat is sticking open.
     
  12. Jul 25, 2012 at 1:01 PM
    #12
    Submariner

    Submariner [OP] Member

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    Wayne
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    air filter and custom headlights
    ok, here is an update,

    Change the thermostat. peice of cake.

    there was what looked like an o-ring stuck in the flow opening of the themostat which would not allow for the thermostat to fully close.

    I wonder how long it was that way./ PO jeessss

    everything works fine now. enging comes up to temp quick and maintains a steady temp on the gauge.

    All is good.............:):):yay:
     
  13. Jul 25, 2012 at 1:05 PM
    #13
    4Wheelin4Banger

    4Wheelin4Banger Longtime Toyman

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    3" OME lift 885s & Dakars riding on 33" KM2s Click the sig pic to see the build thread .
    Glad you got it fixed.
     
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