1. Welcome to Tundras.com!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tundra discussion topics
    • Transfer over your build thread from a different forum to this one
    • Communicate privately with other Tundra owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

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

    Fiestee23 [OP] A CHICK'S TRUCK

    Joined:
    Jun 18, 2017
    Member:
    #8183
    Messages:
    731
    Gender:
    Female
    SOCAL
    Vehicle:
    White sr5 4wd
    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.
     
  2. Aug 20, 2017 at 7:17 AM
    #2
    Bprose

    Bprose Old member

    Joined:
    Jan 15, 2017
    Member:
    #5955
    Messages:
    1,338
    Gender:
    Male
    VA
    Vehicle:
    17 Tundra CM TRD
    Probably the AC equalizing. My mazda and 4 runner both do it. It's usually about 30 seconds or so after shutting it off.
     
  3. Aug 20, 2017 at 7:46 AM
    #3
    Fiestee23

    Fiestee23 [OP] A CHICK'S TRUCK

    Joined:
    Jun 18, 2017
    Member:
    #8183
    Messages:
    731
    Gender:
    Female
    SOCAL
    Vehicle:
    White sr5 4wd
    It's not like a fan cooling or something like that...Does your truck do it?
     
  4. Aug 20, 2017 at 8:24 AM
    #4
    14burrito

    14burrito IG @14burrito

    Joined:
    Dec 14, 2014
    Member:
    #798
    Messages:
    3,819
    Vehicle:
    2014 SR5 CM 4x4 5.7
    @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
     
    T-Rex266 and big_jarv like this.
  5. Aug 20, 2017 at 8:31 AM
    #5
    14burrito

    14burrito IG @14burrito

    Joined:
    Dec 14, 2014
    Member:
    #798
    Messages:
    3,819
    Vehicle:
    2014 SR5 CM 4x4 5.7
    @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
  6. Aug 20, 2017 at 8:36 AM
    #6
    big_jarv

    big_jarv New Member

    Joined:
    Jul 14, 2017
    Member:
    #8561
    Messages:
    550
    Gender:
    Male
    Vehicle:
    2021 TRD Pro
    Bingo.
     
    Fiestee23[OP] likes this.
  7. Aug 20, 2017 at 8:37 AM
    #7
    T-Rex266

    T-Rex266 Elon approved Staff Member

    Joined:
    Jan 5, 2014
    Member:
    #6
    Messages:
    156,529
    Gender:
    Male
    Normal as noted above
     
    Fiestee23[OP] likes this.

Products Discussed in

To Top