AC + Cruise Vac lines in engine bay

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Jak22099

Junior Member
Joined
Apr 19, 2023
Posts
11
Reaction score
5
Location
Tennessee
First Name
Jack
Truck Year
1984
Truck Model
K10
Engine Size
400 SBC
Working on my '84 K10 and trying to get the factory AC working. PO swapped the engine with a 400 sbc, so 90% of the factory vac lines have been completely gutted. I'm admittedly not very good at following these vac line diagrams but I think I finally understand it and basically just want to double check and make sure I'm correct on this. The hard plastic black line that comes from the firewall into the engine bay next to the airbox isn't connected to anything. I know this needs to run to vacuum for the vents to work. I also have factory cruise control and would like to get those lines hooked up as well. I drew up how I'm going to run the lines, just wanted to make sure this is correct.

Any help here would be greatly appreciated!
 

Attachments

  • 20230801_181732.jpg
    20230801_181732.jpg
    76.2 KB · Views: 109

Snoots

Full Access Member
Joined
Jan 23, 2013
Posts
8,750
Reaction score
18,191
Location
Georgia
First Name
Roger
Truck Year
1973
Truck Model
Jimmy Sierra
Engine Size
350 w/203
You must be registered for see images attach
 

Jak22099

Junior Member
Joined
Apr 19, 2023
Posts
11
Reaction score
5
Location
Tennessee
First Name
Jack
Truck Year
1984
Truck Model
K10
Engine Size
400 SBC
Thanks but that looks like an electrical diagram I'm just trying to verify if i have my head around how the vac lines run
 

adamontheroad

Junior Member
Joined
Jul 29, 2023
Posts
1
Reaction score
0
Location
Florida
First Name
Adam
Truck Year
1986
Truck Model
K10
Engine Size
396
Working on my '84 K10 and trying to get the factory AC working. PO swapped the engine with a 400 sbc, so 90% of the factory vac lines have been completely gutted. I'm admittedly not very good at following these vac line diagrams but I think I finally understand it and basically just want to double check and make sure I'm correct on this. The hard plastic black line that comes from the firewall into the engine bay next to the airbox isn't connected to anything. I know this needs to run to vacuum for the vents to work. I also have factory cruise control and would like to get those lines hooked up as well. I drew up how I'm going to run the lines, just wanted to make sure this is correct.

Any help here would be greatly appreciated!
Did you figure it out? I’m in the same situation. Sweet drawing skills by the way!
 

Craig 85

Full Access Member
Joined
Jan 25, 2017
Posts
3,917
Reaction score
4,116
Location
Nashville, TN
First Name
Craig
Truck Year
1985
Truck Model
K30 SRW
Engine Size
454/TH-400/NP205
Here's a couple diagrams I have of the hose layout.

You must be registered for see images attach
You must be registered for see images attach

You must be registered for see images attach
You must be registered for see images attach
 

Forum statistics

Threads
44,162
Posts
950,642
Members
36,276
Latest member
2manysquares2care
Top