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Old 01-26-2011, 11:29 AM
blueranger1801 blueranger1801 is offline
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Default what is this peice for?

Alright guys. I would really appreciate it if some one can explain to me what this elbow hose is for? the one going from the valve cover to the intake. It has a rip in it ( you cant see it from this angle) and when i plug it up with my finger my engine idles smoother.

And as you can see also it seems to be squeezed and crushed at the bend. So im pretty sure plugging it up wont solve the problem because its still crushed so the air will not run through it properly. Kinda like a vaccume that wont suck when you step on the tubing. I just dont know what this is called or what exactly is its purpose.

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Old 01-26-2011, 11:40 AM
Fordzilla80 Fordzilla80 is offline
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Default Re: what is this peice for?

PCV valve IIRC. Positive Crankcase Ventilation. The reason your engine idles smoother when you plug up the hose is because you are losing vacuum at the crack. This is a common problem on Rangers, so it shouldn't be hard to find that hose. It'll probably be under PCV hose.
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Old 01-26-2011, 12:00 PM
STL STL is offline
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Default Re: what is this peice for?

Yes PCV valve
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Old 01-26-2011, 12:10 PM
01_ranger_4x4 01_ranger_4x4 is offline
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Default Re: what is this peice for?

as they stated that peice is the PCV valve and from the looks of the collapsed PCV hose/ elbow the valve is blocked or stuck. id replace both.
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Old 01-26-2011, 01:12 PM
blueranger1801 blueranger1801 is offline
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Default Re: what is this peice for?

oh snap. guys one thing i forgot to mention. When i removed this peice to inspect it. it was linked to a tube that was going into the intake manifold...now while taking this part out i noticed that it was covered in a little bit of oil as if some oil had made its way up there....how is this possible?? IS THIS SAFE????? im lost...i did not expect to see some oil in there.....
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Old 01-26-2011, 01:20 PM
Fordzilla80 Fordzilla80 is offline
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Default Re: what is this peice for?

Where was the oil? On the PCV Valve, or on the intake?

You definitely need to replace the PCV and that hose. Luckily, it's a very cheap part. If you have a clogged PCV valve, the leaked combustion chamber gases are held inside the engine, which isn't too good for it. The PCV valve is a regular maintenance item that should be routinely checked and replaced as needed. It's one of the most neglected parts of an automotive system.
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