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That random noise after your truck is off...

Discussion in '4 Cylinder' started by cdthiker, Jun 29, 2013.

  1. Jun 29, 2013 at 1:24 PM
    #1
    cdthiker

    cdthiker [OP] Well-Known Member

    Joined:
    Oct 3, 2012
    Member:
    #88264
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    Tim
    WAY north Idaho
    Vehicle:
    2012 Tacoma RC 4X4 5speed
    Hi all.

    recently noticed some strange noise coming from the truck after it had been turned off.... I mean like hours after it has been turned off.

    The first time I noticed it was when I was sleeping in the back of the truck a few weeks ago. I was worken up by a humming noise that had started. no idea what it was got up out of the truck, started it up, noise went away, shut downt he truck noise went away, I went back to bed..
    Second time I noticed it was when I was walking out to grab somethign from the truck several hours after it had been shut off, again it was at night.

    Sounded almost like a small pump humming away, seemed loudest about mid way down the body of the truck

    any ideas?

    some context

    2012 reg cab 5 speed 2.7 4x4

    thanks
     
  2. Jun 29, 2013 at 1:31 PM
    #2
    MGMTacolover55

    MGMTacolover55 Well-Known Member

    Joined:
    Jan 31, 2013
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    Orygun
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    2013 MGM Taco TRD Off Road
    floor Mats
    Smog pump no need to freak out unless your truck is throwing codes
     
  3. Jun 29, 2013 at 1:52 PM
    #3
    cdthiker

    cdthiker [OP] Well-Known Member

    Joined:
    Oct 3, 2012
    Member:
    #88264
    Messages:
    102
    Gender:
    Male
    First Name:
    Tim
    WAY north Idaho
    Vehicle:
    2012 Tacoma RC 4X4 5speed
    as in linked to the good ole charcoal canister?

    figured it was supposed to be doing it just never noticed it before after having it for a year thanks for the info
     
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