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Crackling and popping sound coming from vents on start up

Discussion in 'Model 3' started by omar, Apr 20, 2018.

  1. omar

    omar Member

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    Hello all,

    After the car has been idle for a little while, I notice a crackling/popping sound coming from the vent area when I go to start it up again. It happens as soon as the car is on. The air or heat isn't on and it still makes this noise. This happens every time I leave the car outside in the sun or warm climate. It goes away after a couple of minutes but I thought it was strange.

    Has anyone had this issue?? Any feedback would be awesome. Thanks!
     
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  2. voip-ninja

    voip-ninja Give me some sugar baby

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    You should upload a video or audio recording of this.
     
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  3. Moderatefan

    Moderatefan Member

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    #3 Moderatefan, Apr 20, 2018
    Last edited: Apr 20, 2018
    Have you done the de-bugging for any unwanted mics in your vents? Do you belong to any known terrorist organizations?

    Just going through my standard troubleshooting routine for the crackling sounds.
     
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  4. omar

    omar Member

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    Yeah, good suggestion. I should use the video when I take it in as well. I figured it'll be hard for a service center to recreate this issue.
     
  5. kbecks13

    kbecks13 Active Member

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    I have something similar to this as well. Also, when i first got the car my passenger vent would make a similar clicking sound when splitting the air stream from 1x to 2x. Took it to the service center and they found that the flapper was loose, so it could be something like that.
     
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  6. omar

    omar Member

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    Nice to hear it was taken care of! Thanks!
     
  7. Zaphod

    Zaphod Galaxy President (former)

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    Maybe the worker on the factory line dropped a screw or something that is hitting the fan blades? Or maybe dropped an M&M? :p
     
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  8. N5329K

    N5329K Active Member

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    I found a paper cup in the defroster vent tube on my Triumph, and a small screwdriver actually welded to the floor of the boot (trunk), but that was British Leyland in the 1970's.
    Robin
     
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  9. run-the-joules

    run-the-joules Active Member

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    he said it's crackling and popping. I think these are the more likely culprits:

    upload_2018-4-20_15-4-6.png
     
    • Funny x 2
  10. drawfour

    drawfour Member

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    He didn't say it was snapping though.
     
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  11. voip-ninja

    voip-ninja Give me some sugar baby

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    Brits.

     
  12. Thomas Edison

    Thomas Edison Active Member

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    The cracking and popping was to get the attention of snap. So he knew where to go to make them a happy family again.
     
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  13. Darthbenji

    Darthbenji Member

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    Just noticed a noise coming from my vent also. It sounds like speaker static but the sound is not on. I can tell it’s from the vent. Anyone else?
     
  14. omar

    omar Member

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    My car is in service right now for that issue. They told me they are replacing something under the dash. Take a video of it and take it in to a SC.

    I'll let you know more info when I get it back.
     
  15. Darthbenji

    Darthbenji Member

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    Mine is definitely AC related. When climate is off it goes away. Actually it seems to only occur at fan speed 7-8
     
  16. novox77

    novox77 1.21 Gigawatts

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    I have a rattle noise that develops only at 7 and 8 as well. Mine's not linked to A/C, just the fan.
     
  17. Darthbenji

    Darthbenji Member

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    #17 Darthbenji, Jun 14, 2018
    Last edited: Jun 14, 2018
    Ahhh I didn’t try it without AC. I will. I did screw around a bit more and it’s only on 7 with the full air blowing from the main dash vent. If I split it to the dash and floor it goes away until I turn the fan up to 10. It also goes away if the air is directed to the floor only. Basically anywhere below the center line on the display and it’s gone.

    Edit: just went to check if it happens without AC. Now it doesn’t happen at all. Baugh.
     
  18. 5yJeff

    5yJeff Member

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    Did you get this resolved? Started happening to me yesterday -- called it in, they're in the process of escalating/researching.
     
  19. Darthbenji

    Darthbenji Member

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    A couple days later the AC failed completely. I brought it in and reported the crackling and AC. Since the crackling wasn’t all the time and they said they couldn’t reproduce it. Having said that, now that the ac is fixed it’s never come back.
     
  20. omar

    omar Member

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    Nice info! I got my car back from service center. They dampened the noise but it's still there unfortunately. Maybe I'll ask them look into the AC.
     

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