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Loose pipe on 4.0?
- Thread starter vwrobc
- Start date
flyingbrick
NAXJA Forum User
- Location
- Monterey CA, San Luis Obispo
supposed to be connect to the back of the airbox that you don't have... So it should be connected into the air line after the filter same with the little J shaped line just under the air filter
Hey flyingbrick! Thanks for the quick reply.
That's not my engine, btw - I cribbed it online because it had the same 90deg elbow before the pipe I referred to. The pics I saw of that pipe heading straight to the air box did not have the elbow. Mine has the airbox fitted and the J shaped line does go into it.
I've noticed not all of the engines have that plastic 'junction' to the left of the elbow too. Is it dependent on year or something?
That's not my engine, btw - I cribbed it online because it had the same 90deg elbow before the pipe I referred to. The pics I saw of that pipe heading straight to the air box did not have the elbow. Mine has the airbox fitted and the J shaped line does go into it.
I've noticed not all of the engines have that plastic 'junction' to the left of the elbow too. Is it dependent on year or something?
flyingbrick
NAXJA Forum User
- Location
- Monterey CA, San Luis Obispo
That is a picture of a RENIX ('90 and older) engine compartment. I think the newer HO engines did not have the same vacuum system.
Renix was CCV, HO was PCV.
the renix system is tempermental, and when it reverses itself it dumps oil out of the line into the airbox. Usually a good cleaning of all the orifices fixes it, unless your 4.0 just has seriuos blowby.
the plastic junction is a connector. two piece assembly, the lines go out one side are attached so they wont come off (glued in), same with the other side.
needed to replace my ccv valve on the front and what i received was 1/2 of that junction, the line going to the ccv and two small J shaped lines that go right around, as an assembly
mine was all cracked and what not. You can do away with the junction, just run one piece of hose the whole lenght, and use some wire ties to secure it to the junction mount.
lawsoncl
NAXJA Forum User
- Location
- North Idaho
HO was essentially the same CCV setup and didn't have a PCV.
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