Does anyone know where I can find a vacuum diagram for a 1994 xjs with a 4.0? I have a disconnected hose and cannot find out where it goes. It has what looks like a plastic directional valve on it or a filter. ITt comes from the manifold.

Also seems like a hose is missing on the piece that is attached to the Left Front relay panel. I belive it is some sort of switch? I have three manuals with none of this listed...

 

I'm having a devil of a time finding something in print for vacuum routing on that car. If you can post pictures of the valve and it's location, and the item by the relay panel, I'll try to point you in the right direction.

Cheers,

 

I have given up myself on finding a vacuum diagram.

Below is a photo of what popped off on me. I believe it goes on the end of the solenoid (blue) on the connection facing downward. I would like to make sure though.



heres the link if the image does not display: vacuum | Flickr - Photo Sharing!

 

You are correct, here is the layout of the Air Injection system on your '94. Sometimes a picture is all it takes.......

Cheers,