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Discussion Starter · #1 ·
The two vacuum lines that run off the intake tube, one is larger than the other.

What size are they? I am wanting to change these out to silicon.

I cannot find anything definite in what these run to. The larger one runs tona check valve of some sort under the intake manifold and the smaller one??

I am doing the PCV system and mine are pretty dried out and cracked so I am wanting to fix this before I put this all back together..



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One goes to your evap purge valve (larger hose I think) and the other goes to the blue side of the TCV (smaller hose)
 

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