Vacuum hose?

[Gandalf79]

Looking to see where the other end of this hose should be connected
It is coming from what I believe is a vacuum port at the back of the upper intake
My ride has been very hesitant and bogging down at higher speeds to the point of almost stalling.
Is that a vacuum issue? Pcv issue, fuel pump or filter issue or all of the above.
Also , is this my pcv valve location on my 79?
Ty for any help !

 

[89ripper]

Vacuum leaks can cause issues, sure. Might be helpful to get something like this

1979 Ford Mustang Capri Electrical Vacuum Troubleshooting Manual | eBay

Find many great new & used options and get the best deals for 1979 Ford Mustang Capri Electrical Vacuum Troubleshooting Manual at the best online prices at eBay! Free shipping for many products!

www.ebay.com

There are pdf versions as well, someone on here might have one

This is one example of vacuum routing, but its for an '82. Some stuff might have carried over

Fig. 77 Calib. Code 2-21E-R10 Federal, Exc. High Alt. — 1982 Ford Mustang V8-302 5.0L Service Manual | Operation CHARM

Detailed repair manual for the 1982 Ford Mustang V8-302 5.0L.

charm.li

 

[Blackhawkxx]

Take your air cleaner off and look around, you should be able to find it.

 

[85GTStangGuy]

.... Might be helpful to get something like this

1979 Ford Mustang Capri Electrical Vacuum Troubleshooting Manual | eBay

Find many great new & used options and get the best deals for 1979 Ford Mustang Capri Electrical Vacuum Troubleshooting Manual at the best online prices at eBay! Free shipping for many products!

www.ebay.com

@Gandalf79

Get this...it may well end up being the best $20 you spend on the car!

 

[Gandalf79]

Vacuum leaks can cause issues, sure. Might be helpful to get something like this
Thanks everyone

I had ordered the manual so I’ll have to look closer to it

1979 Ford Mustang Capri Electrical Vacuum Troubleshooting Manual | eBay

Find many great new & used options and get the best deals for 1979 Ford Mustang Capri Electrical Vacuum Troubleshooting Manual at the best online prices at eBay! Free shipping for many products!

www.ebay.com

There are pdf versions as well, someone on here might have one

This is one example of vacuum routing, but its for an '82. Some stuff might have carried over

Fig. 77 Calib. Code 2-21E-R10 Federal, Exc. High Alt. — 1982 Ford Mustang V8-302 5.0L Service Manual | Operation CHARM

Detailed repair manual for the 1982 Ford Mustang V8-302 5.0L.

charm.li

 

[sparkylawdog]

As far as the PCV valve location, that's where it is on my 85 5.0

 

[Gandalf79]

Thanks guys I’ll look into it. I do have the manual also

 

[Gandalf79]

This is a better view of the vacuum port and the hose with no home

 

[AeroCoupe]

Looks like the one to the driver side also has a hose missing. I would just cap them and move on.

 

[General karthief]

Those are, I believe to be temperature switches for vacuum operated gizmos in the emissions stuff and/or carburetor (stock) function.
Depending on how much of the stock emissions/carb that's left, ignore them, there's no vacuum to them right?

 

[mayapril]

I’m actually looking for this manual in PDF. Thanks for the tip on where to find it. I also wanted to add that a couple of days ago I came across a foxit review on a platform that showcases the best online editors. I’d been looking for a good tool to work with PDFs for a long time, and thanks to the quality reviews and the AI chat on that platform, I finally made my choice. I think this might be useful for someone.