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Air coming out the vents with dial set to off?

Discussion in '3rd Gen. Tacomas (2016+)' started by JacksTurdGen, Apr 14, 2019.

  1. Apr 15, 2019 at 8:24 PM
    #21
    methodtim

    methodtim I eat a lot of salsa

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    I thought I knew how to use my climate control but after reading this, I now realize I know nothing. Nothing at all.
     
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  2. Apr 15, 2019 at 9:14 PM
    #22
    Stocklocker

    Stocklocker Well-Known Member

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    There is still airflow. It may be through the foot vents. If you look at the dampers and inlet/outlet piping, or the design of the car in general, there is always somewhere they are purposefully letting air leak through. The car would be atrocious to be in otherwise. Try locking yourself in a 6-foot square air-tight cube for a few hours and see how you smell, let alone breathe.
     
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  3. Apr 15, 2019 at 9:15 PM
    #23
    Volt

    Volt Well-Known Member

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    I think this is typical for most all vehicles. Some have it more noticeable than others. Some have the air blow through the bottom heater vents when everything is set to off. I know the 1979 Chevy truck I owned way back when always had the fan on at a low setting when the engine was running.
     
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  4. Apr 15, 2019 at 9:24 PM
    #24
    methodtim

    methodtim I eat a lot of salsa

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    This makes perfect sense, I never checked the foot well vents.
     
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  5. Apr 15, 2019 at 9:29 PM
    #25
    Stocklocker

    Stocklocker Well-Known Member

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    It could even be entering the car through the firewall in a location you can’t directly feel it.
     
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  6. Apr 16, 2019 at 5:46 AM
    #26
    nomnomtaco

    nomnomtaco Member

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  7. Apr 16, 2019 at 6:42 AM
    #27
    Cudgel

    Cudgel “Tonka”

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    My truck came with a bunch of papers glued together in the glove compartment that contained a remarkable amount of information related to the truck. There is even a list of areas on this document near the front that contains descriptions and numbers. Coincidentally those numbers are also at the top of each page. The page with a “430” has some writings that provide guidance on how air works.

    Incredible find I know!
     
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  8. Apr 16, 2019 at 3:04 PM
    #28
    AKGSD

    AKGSD Well-Known Member

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    One odd thing I've noticed on mine (that i'm sure is by design) is that the outer dash vents receive airflow in any position (floor, defrost, etc).
    This has been nice for my left hand on chilly mornings.

    And while we're talking climate control, shout out to Toyota for giving these trucks an instantaneous electric heater core to compensate for the slow warm-up times of the 3.5l
     
  9. Apr 16, 2019 at 3:11 PM
    #29
    coopcooper

    coopcooper certified youtube mechanic

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    that's why there is body vents, doubt they design the hvac to leak
     
  10. Apr 16, 2019 at 3:19 PM
    #30
    Stocklocker

    Stocklocker Well-Known Member

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    The body vents are typically what draws the air out that comes in the front of the car, and also prevents your eardrums from bleeding when the Airbags go off.

    A single static hole will not have circulation taking place, you need two.

    There is actually a fair amount of information on the web regarding automotive ventilation. There was concern recently that the benzene coming out of the plastics (AKA “new car smell”) was actually harming people. One of the solutions was to increase interior ventilation.
     
  11. Apr 16, 2019 at 3:26 PM
    #31
    methodtim

    methodtim I eat a lot of salsa

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    Outside vents being always open is a pretty common thing in Japanese cars (I've owned 10+ of them over the years). I think it's how they get air to prevent the side windows from fogging up.

    One typical design is to have a small set of vents in the dashboard that kind of diagonally point to the windows. But since the Tacoma is going for least amount of vents possible...
     
  12. Apr 16, 2019 at 3:29 PM
    #32
    AKGSD

    AKGSD Well-Known Member

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    The Tacoma also has those - and they only kick on with Defrost
     
  13. Apr 16, 2019 at 3:32 PM
    #33
    BillsSR5

    BillsSR5 Well-Known Member

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