Vacuum Hose

[j76bravo]

I was changing out my coil packs when I noticed what seemed like a vacuum hose missing (yellow arrow). Can anyone help?

 

[colintrax]

I don't own a 3rd gen but that doesn't look like a hose nipple. Just a "pin" the actuator is attached to

 

[Markaprice73]

+1 No issue here. It's the Heater Control Valve. It only applies vacuum on the single line to close the valve when your control knob is set to MAX A/C or OFF. It stops the coolant flow from entering your heater core behind the dash. Thus giving you MAX a/c.
Also, this is why in the summer I will set it on normal a/c or any other setting (even full heat) occasionally to move that stagnant coolant around keeping the heater core from possibly clogging or corroding.

 

[j76bravo]

Thanks a million guys... I can rest at ease.

 

[Markaprice73]

No problem. Good job keeping your eyes out for stuff while doing work under there.
Thank YOU for your service.