Where is PCV Valve located?
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Thread: Where is PCV Valve located?

  1. #1
    Junior Member
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    May 2009
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    Where is PCV Valve located?

    Hello all,
    I'm changing the pcv valve on my 1998 Sienna, but I can't seem to locate it? Do you Know where it is? Thanks!

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  3. #2
    Supporting Member
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    Re: Where is PCV Valve located?

    With the hood open on the left side(as you are looking at the engine from the front). By the rad cap you will see 3 spark plug wires going to the back-side of the engine. Follow these wires back, just before you go under the intake manifold you will see the PCV in the valve cover (it will have a hose of the top which plug into the intake) the hose is "L" shaped. You will not have to undo the clamp in the PCV (i pulls off the barb easy).

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  4. #3
    Sam
    Sam is offline
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    Re: Where is PCV Valve located?

    facing the engine, it is on your left hand side under the intake plenum. You can take it out if you have tiny hands, be careful not to brittle your old valve and drop the plastic pieces in.
    98 Sienna LE 188K

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