PCV lines
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Cadillac SRX First Generation Forum - 2004 - 2009 Discussion, PCV lines in Cadillac SRX Forums; What exactly are these "dirty and clean" PCV lines that are mentioned in some posts? I have a 2004 V8 ...
  1. #1
    BEARBAIT1973 is offline Cadillac Owners Member
    Automobile(s): 2004 SRX V8 AWD
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    New Lenox,IL.
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    PCV lines

    What exactly are these "dirty and clean" PCV lines that are mentioned in some posts? I have a 2004 V8 awd and would this be something to be concerned about? Have 70K on it with minimal problems(knock on wood!) and like to keep on top of things. Thanx

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  3. #2
    glake89's Avatar
    glake89 is offline Cadillac Owners Connoisseur
    Automobile(s): 05 srx awd v6, 07 Solstice GXP
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    Re: PCV lines

    The dirty line goes from the PCV orifice to the intake manifold to evacuate crankcase gasses. The clean line goes from the air supply side to a valve cover to supply clean make up air for the PCV system. Both lines can get brittle and leak, usually causing a DTC.
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  4. #3
    BEARBAIT1973 is offline Cadillac Owners Member
    Automobile(s): 2004 SRX V8 AWD
    Join Date
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    Location
    New Lenox,IL.
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    43

    Re: PCV lines

    Quote Originally Posted by glake89 View Post
    The dirty line goes from the PCV orifice to the intake manifold to evacuate crankcase gasses. The clean line goes from the air supply side to a valve cover to supply clean make up air for the PCV system. Both lines can get brittle and leak, usually causing a DTC.
    Thanks for your response. When it gets a little warmer out I will check condition of hoses. Plan on keeping this SRX for at least 2 more years. Waiting to see how the new XTS works out and might be next car{after I decide which bank to rob!LOL}

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