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Loud humm when back out of the driveway

Discussion in '2nd Gen. Tacomas' started by texasboi029, Nov 11, 2011.

  1. texasboi029

    texasboi029 [OP] New Member

    Joined:
    Nov 7, 2011
    Member:
    #66642
    Messages:
    4
    Gender:
    Male
    First Name:
    Chris
    ft worth
    Vehicle:
    2007 trd 4dr
    Does anyone know what is causing my humming noise that i have when im backing out of my driveway in the morning. Don't hear it the rest of the day. Just in the morning. Toyota can't seem to find it cause it doesn't make the sound when i take it to them. But its really loud and annoying and has been doing it since it was almost new. Oh and my a/c has a whistling sound in the fan. Anyone know what that is? Don't think its leaves or anything like that. Any help on either topic would be greatly appreciative thanks
     
  2. ppopa

    ppopa New Member

    Joined:
    Sep 4, 2011
    Member:
    #62938
    Messages:
    1
    Gender:
    Male
    BC, Canada
    Vehicle:
    TRD
    same noise on my new o km Taco V6 TRD... also the sound is coming when rear wheels are spinning on snow..
     
  3. Maticuno

    Maticuno Weapon Mechanic

    Joined:
    May 26, 2011
    Member:
    #57287
    Messages:
    2,128
    Gender:
    Male
    California High Deserts
    Vehicle:
    08 DCLB Sport
    Pioneer AVIC-D3, SWI-PS, Sirius Satellite Radio, 2X In-Cab 110V Outlets, Constant Fog Light Mod, Inverter Always 400W Mod, Anti-Pack-Rat-In-Intake Mod, Eibachs on 5100's, 2" Toytec AAL, B.A.M.F Rear Diff Skid, 265/70R17 Goodyear Wrangler Authority tires
    Sounds like the anti-lock brake system doing a self test. Is the noise is coming from the passenger side firewall.

    Blower motor squeek fix can be found here.
     
  4. mardoqueo galindo

    mardoqueo galindo Well-Known Member

    Joined:
    Jan 17, 2010
    Member:
    #29535
    Messages:
    65
    Gender:
    Male
    First Name:
    marcos
    socal
    Vehicle:
    08 preruner
    toyota 20" wheels,borla double tip exaust,running boards,K&N air filter.
    i have de same problem,exactly,maque a loud hummmming only when im backing up and only when the truck is cold,my truck is DC preruner short bed 2008,has been doing these for one year ,some times come to my main that the oil in the automatic transmicion has some thing to do whith these
     
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