What is this part? 3fe (1 Viewer)

[tegucruiser]

I was working out my vacuum hoses and trying to put everything in the right places, since the cruiser ran like crap. Found a hose missing off the 3 from the intake and then the egr was missing a hose. I got everything lined up and then this part appeared behind my air.....barrel?
Question is what is it and where is the hose on the engine side supposed to go? Its not in the vacuum diagram

 

[Kernal]

@tegucruiser : It's not clear what part you're pointing at (can you post up another photo showing exactly what you're looking at ?), but @jonheld should know.

 

[jonheld]

I can't make out what the device is that is connected to the other end of the hose. Need better pics.
When you say it's not on the diagram, what diagram are you looking at?

 

[Mixelplix]

There's two check valves in that general area. One has three hoses that connect to it, one has two. The air barrel is the air filter housing.

Vacuum line routing 91 w/ 3FE

Well ive been resurecting this 91 from the grave for about 2 weeks now. It was sitting for about 3 years, running pretty good now but there are some issues. First idle is very high in park ~1000 RPM if not more Secondly some of the vacuum lines that route from the air cleaner...

forum.ih8mud.com

There's a vac diagram... maybe it helps.

 

[tegucruiser]

I can't make out what the device is that is connected to the other end of the hose. Need better pics.
When you say it's not on the diagram, what diagram are you looking at?

Its not in the under hood diagram

 

[tegucruiser]

@tegucruiser : It's not clear what part you're pointing at (can you post up another photo showing exactly what you're looking at ?), but @jonheld should know.

I will get a better pic today

 

[jonheld]

Its not in the under hood diagram

Try these from the FSM:

 

[tegucruiser]

It has a hose that comes from the fire wall and then another hose that exits the other side of it. It is bolted to the back of the air box. Its also not in any of the vacuum diagrams, thanks though

 

[jonheld]

There is supposed to be a breather from the firewall to one of the breather ports on the distributor cap. The opposite port on the cap should run to the intake. This is to help eliminate condensation inside the distributor housing. The dissy needs to vent or the internals will corrode over time.

 

[tegucruiser]

There is supposed to be a breather from the firewall to one of the breather ports on the distributor cap. The opposite port on the cap should run to the intake. This is to help eliminate condensation inside the distributor housing. The dissy needs to vent or the internals will corrode over time.

Ok, its connected to the top of the distributor so I am good now. Thanks. I guess that is the filter?

 

[jonheld]

Ok, its connected to the top of the distributor so I am good now. Thanks. I guess that is the filter?

I don't recall there being any sort of "filter" on the breather lines to/from the cap. It vents from the cabin through the cap to the intake port which supplies a small amount of vacuum. Note the 2 different sizes for the breather ports.