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what is a pcv valve?

Discussion in '2nd Gen. Tacomas (2005-2015)' started by NWtacoma, Dec 7, 2010.

  1. Dec 7, 2010 at 7:45 PM
    #1
    NWtacoma

    #1
    NWtacoma [OP] Well-Known Member

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    265/70/17 bfg AT
    :confused:
     
    NWtacoma, Dec 7, 2010
    #1
  2. Dec 7, 2010 at 7:47 PM
    #2
    98tacoma27

    #2
    98tacoma27 is going full "SANDWICH" Moderator

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    Some stuff. Not a lot, just some.
    Positive Crankcase Ventilation. It keeps the crankcase pressure in check.
     
    98tacoma27, Dec 7, 2010
    #2
  3. Dec 7, 2010 at 7:56 PM
    #3
    builthatch

    #3
    builthatch MiG-21 superfan

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    to add, it is usually hooked up to the intake manifold - vacuum from the manifold pulls oily gases out of the crankcase. it's a one way valve.
     
    builthatch, Dec 7, 2010
    #3
  4. Dec 8, 2010 at 4:17 AM
    #4
    Potomac30

    #4
    Potomac30 Member

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    and the reason that it is a one way valve is to prevent a backfire from getting into the valve cover
     
    Potomac30, Dec 8, 2010
    #4

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