Intake vacuum lines

[cnorman31]

I just did a smoke test on my '91 Fox and found that one of the vacuum ports on the back of the manifold doesn't have a hose connected to it. I believe it's supposed to go to the EGR solenoid since I currently don't have a hose hooked up to the EGR. However, the connector coming off the EGR solenoid is missing the piece where the hose inserts. I've tried finding this part online with no luck. Does anyone know if this piece is available for purchase, or can I just run a hose directly from the manifold to the solenoid and then to the EGR? Or can I just cap it off?


Also, I think a few of my other vacuum connections might be routed incorrectly. Every diagram I've seen shows that the large hose on the back of the manifold should go to the vacuum tree, but mine is currently running to the PCV valve and the S vacuum on tree is hooked up on the connection to the driver side of manifold. Does that matter? Here are some pics. It's a Trick flow intake BTW

Plug coming off egr solenoid

 

[89ripper]

As far as vacuum go, it doesnt matter how its hooked up, vacuum is vacuum. The diagrams are helpful to check which components require it.

Im not entirely sure what that part is called that you are missing. Outside of a junkyard or maybe ebay im not sure where you could find one. There is a mustang junkyard out by me "encore mpw" but the site is down right now so I am not sure what is up with it.

You could go to any parts store and find an assortment of vacuum hoses, connections, and plugs to size up.

 

[Willybill32]

I just did a smoke test on my '91 Fox and found that one of the vacuum ports on the back of the manifold doesn't have a hose connected to it. I believe it's supposed to go to the EGR solenoid since I currently don't have a hose hooked up to the EGR. However, the connector coming off the EGR solenoid is missing the piece where the hose inserts. I've tried finding this part online with no luck. Does anyone know if this piece is available for purchase, or can I just run a hose directly from the manifold to the solenoid and then to the EGR? Or can I just cap it off?


Also, I think a few of my other vacuum connections might be routed incorrectly. Every diagram I've seen shows that the large hose on the back of the manifold should go to the vacuum tree, but mine is currently running to the PCV valve and the S vacuum on tree is hooked up on the connection to the driver side of manifold. Does that matter? Here are some pics. It's a Trick flow intake BTW

Plug coming off egr solenoid

For what it’s worth, here’s a photo with vacuum connections to a stock upper intake. You may want to search eBay for an EVTM (Electrical, Vacuum Troubleshooting Manual) for your year Mustang. Unless you did the modifications yourself, anything can be going on!

Bill

 

[Scrapla347]

LMR sells a vacuum repair kit that comes with some connectors and lines. I removed my emissions so I have that port capped off. Local parts stores also sell vacuum line, you might have to ask for windshield washer tubing.