Cruise control vacuum line location

[clickittyclank]

Putting things back together in this 87 gmc Sierra classic 350 tbi and I don’t have a good photo of where this bottom vacuum line went. Best photo I had showed it going back down by the distributer. Thinking maybe supposed to go back to this capped nipple but wanted to be sure.

Other hoses go to servo, air ball on the driver side and one cuts over to the passenger side and going through the firewall. The larger hose from the servo looks like it runs over a o the drivers side and through the firewall to the steering column.

 

[YakkoWarner]

Probably not to the steering column but down toward the brake pedal. The concept is that when you press the brake it releases any vacuum in the actuator immediately, the result being the throttle returns to the idle position so the cruise control isn't applying throttle when you're trying to stop.

 

[clickittyclank]

I think the one that cuts into the cab is a hose from the servo and not from this tee. Like I said though, best photo I have is it dropping down by the distributer.

 

[clickittyclank]

Think I found it. Based on this diagram it looks like that line gets manifold vacuum.

 

[PrairieDrifter]

80's trucks that vacuum ball is for the hvac controls.