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Always on AC

Discussion in '1st Gen Tundras (2000-2006)' started by 04DCTundraMan, Apr 28, 2021.

  1. Apr 28, 2021 at 5:06 AM
    #1
    04DCTundraMan

    04DCTundraMan [OP] Crimedog McGriff

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    Anyone else always have air coming through the vents even when the AC controls are set to Off?? It’s been like that since I’ve owned the truck...I just put it on defrost so it’s not constantly blowing air in my face. But no matter what...if it’s Off it blows either hot or cool air, depending on the temp setting.
     
  2. Apr 28, 2021 at 5:08 AM
    #2
    Tundra2

    Tundra2 Zoinked

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    Is the interior air recirculation button pressed? I was driving today, and noticed with that button in the Off position I was getting air through.

    It's been cold here so I leave it on heat, and windshield during these conditions. Today, I swapped it over to full face wind.

    The one that looks like a car?
     
    15whtrd and FrenchToasty like this.
  3. Apr 28, 2021 at 5:15 AM
    #3
    04DCTundraMan

    04DCTundraMan [OP] Crimedog McGriff

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    It isn’t on, but when it’s on I get more...it does only happen when I’m driving to your point. Maybe just the vent not fully closing?
     
  4. Apr 28, 2021 at 6:51 AM
    #4
    GeezePlease

    GeezePlease New Member

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    The AC compressor kicks on automatically if have the defroster or defroster/floor selected, even with the AC button off. Quite a few of my past vehicles had this feature. Is your AC running in all positions?
     
  5. Apr 28, 2021 at 7:59 AM
    #5
    BubbaW

    BubbaW FAA Tweaker

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    If I am understanding correctly, I believe this is normal, either that or I have a problem also :confused:

    When I have recirculate in off position, fan off, vents up top, I have a volume of air coming out vents and faster I go the more volume but still not that much :notsure:
     
    04DCTundraMan [OP] likes this.
  6. Apr 28, 2021 at 8:06 AM
    #6
    Festerw

    Festerw New Member

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    Normal for I'd guess most vehicles. I've never had one that with the the fan off hasn't had some residual air movement while driving.
     
  7. Apr 28, 2021 at 8:14 AM
    #7
    FirstGenVol

    FirstGenVol The "Mangler"

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    Too many
    Same here. I have some air coming out of the vents even when the blower is turned to zero. Doesn't really bother me and if it does I just point the vents away from me.
     
    04DCTundraMan [OP] likes this.
  8. Apr 28, 2021 at 8:29 AM
    #8
    Professional Hand Model

    Professional Hand Model A.K.A ‘Golden Hands’

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    Yeah. The damper is open so air is allowed to enter (even with fan Off). Faster vehicle speeds results in more air entering cab. I learned this in 3rd grade.

    To stop this natural phenomena, press ‘Recirc’ which closes damper to outside at atmosphere.

    If that doesn’t stop the air, then your Recirc Door is broken.
     
    DarkMint, chrisb, 15whtrd and 4 others like this.
  9. Apr 28, 2021 at 10:03 AM
    #9
    BubbaW

    BubbaW FAA Tweaker

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  10. Apr 28, 2021 at 10:32 AM
    #10
    bmf4069

    bmf4069 Yup, that's car parts in a dishwasher

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    Only vehicles I've had that didn't do that is fords.
     
  11. Apr 28, 2021 at 12:29 PM
    #11
    Professional Hand Model

    Professional Hand Model A.K.A ‘Golden Hands’

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    bmf4069 likes this.
  12. Apr 28, 2021 at 1:25 PM
    #12
    BubbaW

    BubbaW FAA Tweaker

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    DreamOn.jpg
     
    bmf4069 likes this.
  13. Apr 28, 2021 at 3:32 PM
    #13
    Tundra2

    Tundra2 Zoinked

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  14. Apr 28, 2021 at 6:25 PM
    #14
    Toyoda Tundra

    Toyoda Tundra New Member

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    My 04 does the same thing.
     
    04DCTundraMan [OP] likes this.
  15. Apr 29, 2021 at 4:23 PM
    #15
    04DCTundraMan

    04DCTundraMan [OP] Crimedog McGriff

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    This is my first non Ford vehicle. That would make sense.
     
    bmf4069 likes this.
  16. Apr 29, 2021 at 4:24 PM
    #16
    04DCTundraMan

    04DCTundraMan [OP] Crimedog McGriff

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    Glad to hear this is normal. Never really bothered me, I just turn it to defrost. But I was just curious. Thanks for the responses everyone.
     
  17. May 5, 2021 at 10:46 AM
    #17
    chrisb

    chrisb scumbag

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    There is a documented fix for this.
    You remove the HVAC control fascia and unplug one wire. Boom! Defrost vents selected without engaging AC compressor. #bliss


    Also, I don't understand why anyone wouldn't want a steady stream of fresh air at any time ever.
    Roll down your windows and those drafty wafts from the slumbering HVAC will be unrecognizable.
     

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