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HVAC question

Discussion in '1st Gen Tundras (2000-2006)' started by Rolodetective, Oct 16, 2016.

  1. Oct 16, 2016 at 5:46 AM
    #1
    Rolodetective

    Rolodetective [OP] New Member

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    I think I've developed some sort of issue with my HVAC system.
    The truck is a 2004 with 95k miles, and is usually only driven weekends. (I've put about 12k miles on it since buying it almost 5 years ago.)

    The HVAC system makes, what I could best describe as, a sort of wheezing sound every 10 seconds or so when the system is on. Wheezing or groaning, then stops, then about 10 seconds later I hear it again. The best picture I can paint is this, imagine a person sleeping and they stop breathing for several seconds then they kind gasp for air. It's not incredibly loud but annoying and a little disconcerting. Sounds the truck interior is breathing.

    It does it on all settings, and it just started doing this in the last week or two.

    Anyone have any ideas?
     
  2. Oct 16, 2016 at 5:57 AM
    #2
    ColoradoTJ

    ColoradoTJ King Shock Pimp

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    Husky products, 28% tint on windows.
    Do the first gen tundra trucks have a cabin air filter?
     
  3. Oct 16, 2016 at 12:52 PM
    #3
    Rolodetective

    Rolodetective [OP] New Member

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    They do not
     
  4. Oct 16, 2016 at 1:16 PM
    #4
    Wynnded

    Wynnded Wait, what?

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    OEM Upgrades: Limited mirrors (auto darkening/backup camera/power fold) Limited Wheels Stubby Antenna Automatic Climate Controls Automatic Headlamp Mod TRD Rear Sway Bar Sequoia Front Sway Bar Sequoia Transfer Case Sequoia Leather Steering Wheel Sequoia Limited Gage Cluster Window Tint Fake Manual Transmission Mod 10" BAMF Stainless Catback
    Your truck has sleep apnea?
     
    AaronK, Law323 and joonbug like this.
  5. Oct 16, 2016 at 1:33 PM
    #5
    Law323

    Law323 Shhhhh....Boardude is really Batman.....

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    Dammit. Got to it first LOL
     
    RowdyRon and Wynnded like this.
  6. Oct 16, 2016 at 2:27 PM
    #6
    Mike

    Mike Tread lightly.

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    yep bank account is running low from it..
    Blower motor bearing maybe....
    Or squirrel cage hitting something or caught something in it making the noise.
     
    driverdog likes this.
  7. Oct 16, 2016 at 2:34 PM
    #7
    AaronK

    AaronK New Member

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    Vacuum leak maybe?.
     
  8. Oct 16, 2016 at 2:38 PM
    #8
    Wynnded

    Wynnded Wait, what?

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    You can recommend breathe-right strips. I'll give you full credit.
     
    Law323 likes this.
  9. Oct 16, 2016 at 2:44 PM
    #9
    Wynnded

    Wynnded Wait, what?

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    Are you able to nose around to try to determine more precisely the origin of the sound. Fan motor, A/C compressor, the like.
     
  10. Oct 22, 2016 at 5:09 AM
    #10
    Rolodetective

    Rolodetective [OP] New Member

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    I will.....I was just hoping I didn't have to do exploratory surgery. I was betting someone has had this same issue....but I lost that bet. Thanks for the thoughts gents, I'll post back if I determine what it is.
     
  11. Jul 8, 2017 at 6:01 AM
    #11
    Rolodetective

    Rolodetective [OP] New Member

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    I promised I'd post back if I found the problem and I have.....what I also learned, based on the dates of my posts....is that I do not drive my truck enough. WOW.

    Anyway....it was an A/C issue. If you open the hood, you will see a coupling in front of the radiator on the far right side. There is a seal there...these seals tend to deteriorate causing a freon leak. The system is meant to be a pressure system, thus as the pressure was trying to build, the seal would leak causing the pressure to bleed back down. That pressure bleed was the "exhaling" I was hearing.

    So, $100 later and all is good. (seal was like 2 bucks, dye for test was a few bucks, freon was like $37 bucks....rest was labor.)

    Hope this helps someone.
     
  12. Jul 8, 2017 at 7:10 AM
    #12
    RowdyRon

    RowdyRon WarEagleSteve Fan Club President

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    2015 Radiant Red TSS Doublecab 4X4 Off Road
    Deck rail system, Bed divider, door sill protectors, LED reverse light bars, Aries Bull Bar with 28" 180 watt LED light bar, LED step lights, LED bed lights, driver-side grab handle, TRD Rear Sway Bar, BedRug bed mat and tailgate mat, Morimoto Fog Lights, more to come.....
    Great follow up; thanks! Glad you got it figured out!
     

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