PCV Valve

Discussion in '96-04 - 2V Specific' started by lonestar1, Oct 10, 2015.

  1. lonestar1

    lonestar1 New Member

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    Gentlemen, got 205K miles on 2002 4.6 motor. My original pcv valve has the 90 degree bend and I can't find a replacement pcv. The new ones are straight up and I will need a new hose. Does a pcv valve go bad? I always clean them with carb cleaner. I've noticed quite a bit of oil in the line and wondering if this is normal or if the valve may be worn out.

    Thanks for your help.

    Lonestar1
     
  2. 96blak54

    96blak54 Legend

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    You may need a new pcv valve and replacing the grommet is ideal too, but the modulars have alot of residual oil floating around in the valve covers that get sucked into the intake tract. Grabbing an oil/air separator from steeda, summit, jegs eliminates this. All modular engines need an oil/air separator regardless of use.
     
  3. lonestar1

    lonestar1 New Member

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    Can there be enough oil to notice it burning in the exhaust?
     
  4. 96blak54

    96blak54 Legend

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    Yes, but mostly noticed at high rpm and not idle or low running
     
  5. yzfr6i

    yzfr6i New Member

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    Another thing to check while your working on your PCV is the line that runs from the passenger side to the throttle body. Start the car and let it idle. Look at the hose where it makes the 90* bend and goes into the TB, and see if the hose is collapsing. The oil that gets sucked through the hose causes it to breakdown and become weak. The addition of an oil separator will replace this as well.
     
  6. 96blak54

    96blak54 Legend

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    ^ I remember this with my crownvic....good advice!!
     
  7. Nuttinbutcrumbs

    Nuttinbutcrumbs Active Member

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    Do the modular's have that screen that's under the pcv in the intake like the 302's do?
    PS: I'm not sure about w the modular's but aftermarket grommets always suck, way too loose.




    Don't Sext and Drive.
     
  8. Nuttinbutcrumbs

    Nuttinbutcrumbs Active Member

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    ...
     
  9. 96blak54

    96blak54 Legend

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    The valve covers do have a block plate, but homogenous oil slips past.