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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 I'm a boob guy.

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    Chris
    Colorado Springs, CO
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    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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    Your truck has sleep apnea?
     
    AaronK, Law323 and joonbug like this.
  5. Oct 16, 2016 at 1:33 PM
    #5
    Law323

    Law323 Pray for peace, prepare for war

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    2012 4.6 L MGM DC
    3" Rough Country Level lift (front) 1" Toytec block (rear) 275/70r18 Toyo AT2 Info system mod 3D MAXpider Kagu floor mats LED interior lights 50% ceramic tint front windows 35% ceramic tint windshield brow Bed mounted YETI bottle opener Paracord wrapped oh Sh!t bars 3" stubby antennae Upcoming: LED backup lights/cargo lights OEM Backup camera Raceline Raptor? 18x9 wheels ICI magnum step bars TRD sway bar Toytec BOSS 3" suspension lift Trifold or roll up tonneau cover Tow mirrors????
    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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    south carolina
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    2003 tundra sr5 4x4 stepside....
    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.
     
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