1990 e350 460 PCV valve
Cross-Country
Joined: Sep 2020
Posts: 60
Likes: 12
From: SW USA
I can't tell you if there should be anything connected there, often times a multiport PCV valve fits more than one application or the engine has different options of PCV valve for things like high altitude or federal/CA emissions. I can tell you that if there is no second hose, then that second port needs to be capped off.
Hotshot
Joined: Jul 2020
Posts: 10,562
Likes: 2,673
From: Near Salt Lake City
No, that top port was used on some applications back in the 80's
That is why now days, there isn't even a hole drilled in that top port
Just leave it
Back in the 80's when you bought one, it came with a manifold cap because the port was open
That is why now days, there isn't even a hole drilled in that top port
Just leave it
Back in the 80's when you bought one, it came with a manifold cap because the port was open
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