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Overheating at idle

Discussion in '1st Gen Tundras (2000-2006)' started by The tundy, Sep 10, 2018.

  1. Sep 10, 2018 at 5:19 PM
    #1
    The tundy

    The tundy [OP] New Member

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    Hey guys I’m having a small issue with my 01 tundra with the 4.7 where at idle it starts running a little hot while sitting in traffic for a while. I have replaced the fan clutch, radiator, radiator cap, and thermostat all within the last 17k miles and it’s all been within the past couple months. Also when it does start running hot the ac stops blowing cold. As soon as I get going again the ac is freezing again and the truck runs like a top. This problem only occurs when I have the ac blowing it seems. I have some mechanical ability but this one really has me stumped. Thank you for any help.
     
  2. Sep 10, 2018 at 5:34 PM
    #2
    ColoradoTJ

    ColoradoTJ My balls was hot Staff Member

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    I would be looking at the water pump. Your not getting good circulation.
     
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  3. Sep 10, 2018 at 5:35 PM
    #3
    TheBeast

    TheBeast The Beach

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    no leaks in any of the hoses ?
     
  4. Sep 10, 2018 at 5:42 PM
    #4
    The tundy

    The tundy [OP] New Member

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    If it was the water pump wouldn’t it be overheating all the time? The hoses are all firm while it’s running showing there is pressure.
     
  5. Sep 10, 2018 at 5:42 PM
    #5
    The tundy

    The tundy [OP] New Member

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    I have not noticed any leaks. coolant level seems to stay the same.
     
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  6. Sep 10, 2018 at 6:36 PM
    #6
    TheBeast

    TheBeast The Beach

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    air bubble ? when was the last time you flushed it ?
     
  7. Sep 10, 2018 at 6:51 PM
    #7
    ColoradoTJ

    ColoradoTJ My balls was hot Staff Member

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    No, not necessarily. When your moving you have good airflow and additional RPM from the motor which propels the pump.
     
  8. Sep 10, 2018 at 6:54 PM
    #8
    The tundy

    The tundy [OP] New Member

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    Last time I replaced the radiator a little over 4 months ago
     
  9. Sep 10, 2018 at 6:55 PM
    #9
    The tundy

    The tundy [OP] New Member

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    Alright thanks for the tip I’m thinking that’s going to be next on my list whether it’s bad or not because I need to do the timing belt service too.
     
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  10. Sep 10, 2018 at 7:05 PM
    #10
    ColoradoTJ

    ColoradoTJ My balls was hot Staff Member

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    Tag me when you reply. I’m really interested in the outcome. You have replaced everything but the pump.

    I have seen clutch fans bad out of the box...happened to me. Did you get a new one from Toyota or get a parts store replacement?
     
  11. Sep 10, 2018 at 7:13 PM
    #11
    The tundy

    The tundy [OP] New Member

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    I got it from autozone back in November I believe it was 17,000 miles ago I replaced it and it’s seemed to work fine. That is definitely something I will check though.
     
  12. Oct 27, 2018 at 9:14 PM
    #12
    JessiJane06Tundra

    JessiJane06Tundra New Member

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    Would like to know if the water pump did it for you. I'm in the exact same situation, I've handled it lately by throwing it in park and reving the engine lightly. My radiator seems great, no leaks, no coolant loss. Fan works. It won't heat up with the air conditioner on full blast as long as I'm driving, but within about 5 minutes of sitting still the temp starts creeping up, and the air conditioner isnt cold. In a cold rainy day with the defroster on I couldn't even get the temp to drop by cycling the engine, it wasn't even hot outside.
     
  13. Oct 28, 2018 at 12:07 AM
    #13
    ZPMAN

    ZPMAN 2nd place is the 1st looser

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    Maybe check your condenser to see if it's pluged, no air flow? 17 years of bugs?
     
  14. Oct 28, 2018 at 7:21 AM
    #14
    Professional Hand Model

    Professional Hand Model Fred Brookes

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    How many miles you have?
     
  15. Oct 28, 2018 at 7:23 AM
    #15
    lsaami

    lsaami Redneck Toyota boi with a rice-burner Honda

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    Check your ac condenser. Maybe it’s plugged?
     
  16. Oct 28, 2018 at 8:41 AM
    #16
    JessiJane06Tundra

    JessiJane06Tundra New Member

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    Will check that too thx
     
  17. Oct 28, 2018 at 8:45 AM
    #17
    JessiJane06Tundra

    JessiJane06Tundra New Member

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    Pretty lowish around 135,00
     
  18. Oct 28, 2018 at 8:46 AM
    #18
    JessiJane06Tundra

    JessiJane06Tundra New Member

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    I will check it out as well
     
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