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zx003 10-10-2012 12:39 PM

Zetec Intake Manilfold Info

I need help identifying port holes on a zetec intake manifold. I hope arrigle3 does not mind if I borrow his pic from the sales section:

Anyway, I'm trying to trace vacuum lines on my 03 zx3 and I'm wondering what these ports are for?

There are 2 large ones (1 & 2) and three smaller ones (3,4, & 5). Can somebody tell me where those holes connect to, or do we keep them open or we need to plug them? I know that one of the large ones connect to the PCV valve. But I'm not sure which one.

Thanks for your help!!!

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