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Air release maybe??

Discussion in '2.5 Gen Tundras (2014-2021)' started by Fiestee23, Aug 20, 2017.

  1. Aug 20, 2017 at 6:09 AM
    #1
    Fiestee23

    #1
    Fiestee23 [OP] A CHICK'S TRUCK

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    So when I turn off my truck it sounds like air is being released from the front of the truck somewhere. Is this normal? I thought maybe I didn't hear it before because of the stock bumper, but yesterday this same sound came along with like a knocking sound. It almost sounds like NOS on a Rice Rocket. I will take it in on my next day off but just wanted to get some opinions.
     
    Fiestee23, Aug 20, 2017
    #1
  2. Aug 20, 2017 at 7:17 AM
    #2
    Bprose

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    Bprose Old member

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    Probably the AC equalizing. My mazda and 4 runner both do it. It's usually about 30 seconds or so after shutting it off.
     
    Bprose, Aug 20, 2017
    #2
  3. Aug 20, 2017 at 7:46 AM
    #3
    Fiestee23

    #3
    Fiestee23 [OP] A CHICK'S TRUCK

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    It's not like a fan cooling or something like that...Does your truck do it?
     
    Fiestee23, Aug 20, 2017
    #3
  4. Aug 20, 2017 at 8:24 AM
    #4
    14burrito

    #4
    14burrito IG @14burrito

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    @ADSracingshocks - F 3 point ohh / R 2.5 - w/clickers @camburgracing - uniball UCA @rigidindustries - 40" amber/white split, Dually XL, D2 @coopertires - 35/12.5/17 STT MAXX @bayareametalfab - low pro bed rack @toyotausa - 17" rock warrior @sdhqoffroad - rock sliders, a-pillar @hondogarage / @apple / @gaiagps / @dualgps- navigation @wheelersoffroadinc - superbumps
    Secondary air pumps shutting down in an effort to prevent moisture accumulation
     
    14burrito, Aug 20, 2017
    #4
    T-Rex266 and big_jarv like this.
  5. Aug 20, 2017 at 8:31 AM
    #5
    14burrito

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    14burrito IG @14burrito

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    @ADSracingshocks - F 3 point ohh / R 2.5 - w/clickers @camburgracing - uniball UCA @rigidindustries - 40" amber/white split, Dually XL, D2 @coopertires - 35/12.5/17 STT MAXX @bayareametalfab - low pro bed rack @toyotausa - 17" rock warrior @sdhqoffroad - rock sliders, a-pillar @hondogarage / @apple / @gaiagps / @dualgps- navigation @wheelersoffroadinc - superbumps
    14burrito, Aug 20, 2017
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    big_jarv likes this.
  6. Aug 20, 2017 at 8:36 AM
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    big_jarv

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    big_jarv New Member

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    Bingo.
     
    big_jarv, Aug 20, 2017
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    Fiestee23[OP] likes this.
  7. Aug 20, 2017 at 8:37 AM
    #7
    T-Rex266

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    T-Rex266 Elon approved Staff Member

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    Normal as noted above
     
    T-Rex266, Aug 20, 2017
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    Fiestee23[OP] likes this.
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