A/C Vacuum Routing Help Needed

[85-K5Blazer]

I need help on where to hook up the A/C Vacuum line from the Controller inside the cab to the outside source. I have a 1985 K5 with a 6.2L Diesel that has the Vacuum Pump on the back of the engine.

I had a lot of engine work done and the have all the Emission lines routed as well as the Cruise Control line.

My problem is I have no idea where the A/C Vacuum line should attach. I think the shop that I had the work done forgot to include something. Although the A/C was out, I am replacing all the components and know I need the Vacuum source.

The engine does not have a "Ball" like the gas engines or a canister like the later ones have. .

If anyone can send me a picture of where the lines goes I would appreciate it tremendously . I have looked in the service mauals and researched on line and it comes down to needing someone who has one sharing a picture of where and what I need.

The pictures below show my A/V Vacuum line on the firewall with Blue Tape, the Vacuum Pump is bright and shiny as the POD was just replaced along with new vacuum hoses to the EGR / EPR / Cruise Control.

Thanks !!

 

[Blue85]

Vacuum pump? Those things suck...

I kind of expected some information from the emissions sticker, but I guess not. My first guess would be to just Tee it at one of those solenoids, install a check valve and run that through the firewall, but this guy gives a description without any check valve: https://www.dieselplace.com/threads/6-2-liter-vaccum-line-routing.203584/

 

[Wes Harden]

You should be able to t into any source line from the pump. I am guessing the second vacuum line at the pump is the cruise control.